Depends all on tuning really thats what it comes back down to....And Builder/Machinist.Lol Those three things Tuner/Machinist/Builder.If they are all having a good day then you will have a good motor.I have used Wiseco,JE,CP,and YCP they all work pretty well never had problem even after got into a boxing match with a valve piston still looks useable but no way I would trust it.Depending on what you are trying to go for and depending on your budget.If you just want a simple cheap build,Go for YCP they are around 230$shipped.If your going to go with more of a race setup with aggressive cams then I would go with Shelf pistons like Wiseco..ETC.So you will have valve relief,I dont think the YCP have valve relief as much as other more expensive pistons.