Don't take it for un-politeness, but wouldn't a local foum better source of infos?
I can just say that most italian users agree on the beneficial effects of either J or Max props versus standard or performance ones supplied by Benny (reduced propwal, faster grasp in back, etc.)
If You want more personal opinion feel fre to mail a PM.
Cheers /forums/images/graemlins/smirk.gif