Ha, yeah I figured I was opening a can of something. Sorry Jason!
Wow, I had no idea that the exact weights were specific to the springs, that's crazy!
Unfortunately mine are not marked that I can tell. I just switched my hooves with non-marking poweriser hooves last night, so I'm pretty sure I would have seen it marked somewhere on the springs if it was there, and it's certainly not marked on either end. I'm pretty sure that they are the 90KG range springs though.
I should contact Air-Trekkers again and see if they can pick out a specific weighted spring. I have my doubts if they would do that, but who knows. I would certainly try a pair if I could, but I'm in the US and of course over here we're stupid and don't like cool sports like bocking, so the closest person to me with any stilts are probably about 3 or 4 hours drive away at best.
I'm certainly planning on upping my ability with the stilts and keeping fit on them, so I'm leaning towards the 100-110KG range (CZ100) stilts and make myself work a little harder on them. That way as my springs soften they'll still be plenty as my skill goes up. I hope not to gain any weight but I have a feeling that I certainly won't be loosing, so that's another factor.
On the other hand the 90s would certainly be better for quite a while initially it seems like, so I'm still kinda of on the fence. I could always upgrade to the 100 springs at some point in the future if I really need to.
I don't think I'll ever get to the "extreme" stage of bocking, so I certainly won't go for the 110s or anything.
Thanks Jason, you're the best.
PS: Air-Trekkers said that the calf cuff clamp is upgraded to a stronger version, and they come with the all rubber hooves on them.