as i said in my last post, with nitrogen filled rings you could build an engine "virtually" gasketless...and also, not every company/engine builder is going to have the same opinion on the reciever groove concept....but based on my experience and what ive seen done to make big horsepower, the reciever groove is the only way to fly.
I looked up the nitrogen filled rings a while back while thinking up a scheme for my SC (mwuah ah ahhhh) and i found they were available for around 75.00 a set for the cylinder rings, but i didnt know of anyone here that could install them.