Guys
There ARE applications for gapless rings but I would say that 98% of folka on Moparts that are building a few engines for muscle cars driven on the street or being raced do NOT need them at all and will fall to the sales hype BS and buy some at great expense only to be fooled and get nothing in return vs $$ spent--TRUST your engine builder--if he wants them then by all means trust him but if you go in and ask for them then poor you paying all that $$ for nothing
We build some really fast engines for ourselves and friends on the CHEAP by using "cracked cranks" and scuffed pistons and used cams, valve springs, even used rings ( I know crazy right?) etc even used oil pumps--because even though I could have the best of the best I can run fast with "junk" and do it to prove a point and...because after you start one up it is all used parts