I have an RT and an Avanti.
I had an issue fitting the RT on Spanish casings - the barrel would not sit right down on the gasket face. it turned out that the base facing on the barrel was catching on the mag flange, a little relief with the Drexel sorted that. It ran fine for 1500 miles but I wore the rings and barely out after I fitted a mid rage tank and didn't wash it out carefully enough. It's not the fastest kit as others have said but it's very tractable and carried right on till the ring gap was about 6mm when it finally refused to start.
The Avanti is in my GP with a Fran race and it's fun.
