I have heard of quite a few people having problems with the older style of Total Seal rings with the gapless second rings. How well do the new style with the gapless top rings work?

I havent ran the new style gapless rings. I have ran the old style, both from C & A and Total Seal with good success from both. And I have heard great things about the newer style gapless top ring. But along with that, I have heard that if its a unblown gas engine, they arent with the cost and actually cost HP. If its forced induction and or running alcohol, then they are the ring of choice.