Cylinder damage with high kinetic energy?

[vamfun]

Is this a concern for 2010 kickers?

I talked with Bimba to see what they thought. A gal in support said that the cylinders should be limited to 20 ips independent of bore size used. She said that the cylinders on the First list had no internal rubber stops to absorb energy. I asked if the load mass mattered... surely a 20lb mass would be more damaging than a 1 lb mass if traveling at 20 ips. This didn't seem to concern her so long as the 20ips was held.

So I'm thinking most of us are exceeding these limits and therefore should include external stops to preclude piston hammering.

I'd like to hear peoples opinions on this.