I have a ST .61 ringed RE with a long tuned pipe 14-16"
with a header. I have never learned how to tune it other
than slide the pipe into the silicone sleve until it "hops
on the pipe". Any better way? From what I've heard you
can't tune them on the ground since the in flight leening
out is what will do it. Any help would be appreciated.

Frank Ward
Atlanta, GA