Well I here a lot of stories as well - thats the internet for you, full of experts!
When a tuner who builds world championship winning go-karts, classic race bikes, has developed a gp500 bikes for WCM, kr3, and has built a v3 gp500 bike (producing 147 rwhp), from scratch, and he builds 3 or 4 race engines a month with no problem then I suspect it has more to do with the set-up than the piston.
Wiseco used to be the worst piston maker everybody here knows that, however about ten years ago they head-hunted an expert from a different company and he has completely changed there manufaturing process and quality control.
I have heard from several sources from within the gp paddock that there pro-lites are as good as anything hrc or others are producing.
Who knows, maybe i will eat my words as i'm running these pistons in my nsr project, well see.
Wobbly has just set-up one of my brothers kr1s's with these pistons as well so i'll know how they go soon. I will report back.
cheers
Jared
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If all else fails - gas it!