dhacker,

I think the G2 is every bit as quiet and vibration free as my Havoctec. I have shot both and probably could not pick one over the other in regard to these two qualities.

As for the speed issue....I would again say that they are about equal....even though the G2 has an IBO rating that is 9 fps faster with a similar cam.

I think the PWC2 is a relatively smooth single cam....but it has the typical perimeter weighted cam feel....loonnnngg peak weight and then a sudden drop off into a relatively short valley.....though at the back wall it feels like you are holding literally no weight at all.

Hope this helps.