Lead sled.
How's about leave maintenance to the people that do it. Anyone that thinks it safe to fly with a leaking exhaust valve with a comp 5/80 has a serious problem. Maybe you should go read the lyc and tcm sb. Also tcm allow low leak rate. You have to use a a special metered orifice that when set correctly allows you to measure the lowest leak rate you at have pAst the rings. Tcm and lyc do NOT allow any leakage past the valves. Walter has misleading made a statement.
Lead sled you say words that your a(/e is jealous off.
Cheers.