I have used a lot of total seal rings. In race cars they are great but ne has to be careful because ifthe increased vacum with crank venting devces. I have sed a couple of sets on the stret and not real thrilled with them. Not from a power or blowby thing but they seel so well te engine will simetimes pull in oil when shut off. No a lot just enough to be annoying. I now use Hasting moly in all my street engines. With toal seal you a can shut aht motor off and go back in 5 minustes and still ear ssssssssssssssssssssssssssss as the cylinder pressures try to balance themselves.
I did not ec xpect this but as i age i have come to make the decision not to use them in that aplication. Total seal by the way also makes excellant conventional rings.