It turns out that Powerskip springs are cheaper than I thought.  Any suggestions as to whether I should get E580s or E640s?  I could bottom out the E520s with extreme ease, and I would often bottom out one foot during the last stride before a running jump.

Oops, looked again and the price is per spring, not for a pair.  Maybe I should get 7leagues instead?  S-Rexes need a wider spring bracket, right?  What's the deal with that?

Well, umm, I busted my fancy new springs already.  Two or three days of heavy use, and the right one cracked and cannot be used...  That was fast.  It's hard to put my disappointment into words.  I'm going to contact Powerskip about their warranty, but things don't look good as I acquired them through Ebay and they are on Poweriser frames.

EDIT: found that they have no warranty at all on springs.  That bites.

I agree with everyone else, the standard models are fifty dollars overpriced, the advanced are forty or so overpriced, and the kids' ones are just ridiculous.  And I would guess that you're NOT paying for customer service with that price hike.

I'm very happy with my Powerskip springs.  Now I want more power, but since new springs of equivalent quality would cost a great deal of money that I can't spare, I'm going to stick with my 520s and I'll get some mystery springs when I can afford it.  Besides, I can get decent height with my 520s anyway.

And the difference I was discussing between the Powerskips and Powerisers is that the equivalent Powerskip springs are much softer than Powerisers and much easier to bottom out, but the energy return is so great that I get more height anyway.  Jumping on Powerskips is so much easier that I feel safer.  The next logical step is to get mystery springs if their character is so much better.  I recall you mentioning that you feel slightly unsafe on even Powerskip springs after bocking on mysteries.  I am intrigued that such an improvement is possible, and will get a pair if I ever manage to wear out my Powerskips or if I end up with a lot of spare money around.

Oh, well thanks anyway.

And, uh, a little help here please.  The new bocks came with their original springs, but I'm not sure what weight class they are.  I would have to guess that they're 7090s, but I'm not sure.  They say either 18 or 81 on the ends, depending on how you hold them.  What does that mean?

Stand up straight and keep your hooves under you.  The physics and geometry associated with the acrobatics technique of "blocking" should be helpful for keeping your balance after a bad landing.  I'd say don't be afraid, but you seem too adventurous already.  I'd really like you to not be that guy who starts the bocking fatality list.

Remember that your legs are solid columns below the knee and you cannot make use of your ankles like for normal walking.  Keep your back straight and your center of balance over your hooves, not much else to say.

When I land, I tend to lean to the right.  I'm suspicious that my back isn't quite straight because of that and numerous other small clues, but try to compensate for anything like that too.  I've also heard that you should not look straight down at your hooves, even though it's really tempting.  It can throw off your balance.  If you continue to have trouble and you think there's something wrong with your technique, post a video.

They are insanely awesome!  The title says it pretty well.  I went from Poweriser 7090s to Powerskip 520s (75-95kg).  I could bottom out the Powerisers at will but it took a lot of effort.  I was actually disappointed with the Powerskips immediately because they felt so extremely soft for me that I thought the guy that sold them had lied to me about their weight class.  I can bottom them out in a few jumps without really trying.  But then my brother said that I was getting more height on them than I ever did on the Powerisers.  I still think his memory must be soft, but part of me knows that he must be right.  The difference is unbelievable.

Now I want 580s 0r 640s!  One time on 520s and I'm ready for the next class up.  They are very easy to use.  Now I think I have a contribution to bocking lore:  If you can bottom out a cheap brand, the equivalent strength from an expensive brand will feel quite soft.

And before anyone asks why I didn't just buy 580s or whatever, the 520s came off ebay with only slightly used Poweriser Advanced frames to boot for less than normal Powerskip springs.  I also didn't want to go too high because I didn't know how much easier the springs would be.

EDIT: Oh yeah, and I concur that Powerskips require no protection.  Their clear shrink tubing is a few mm thick and quite tough.  They are tougher out of the box than my old ones were after three layers of gorilla tape over the protection they came with.  The tubing suffers little more than a scuff from an average wipeout.

Yeah, the member map is screwed up in some way.  You're not the only one having trouble with it.

I think you need to take it easier, don't be the first to kill yourself with them.

Well, you can add more padding to the bars to make them fit better.  Not sure what to do about the straps, though.

Well, I hope you noted that the reason why it might be open is if they deliver it to the wrong house, there's no telling what the recipients may have done.  Doesn't mean they're being efficient, though.

You should have taped it anyway, before you went off and fell over a few times.

Now I'm in the same boat!  My old Powerisers are worn out and dismantled, waiting for my friend to come over and buy them from me, and my new ones are Poweriser 07s with Powerskip 520 (75-95kg) springs, actually the ones on ebay that the guy spammed to forum with... If my mom had not found the auction independently I would have never even looked at them, but that's beside the point.  The point is that they're NOT HERE!  Argh, I want them SO bad!  Gonna have to wait until the weekend before I can hope to expect them.

Oh, OK.