I guess I was only looking at it as an accuracy aiding mod, I guess I could see the benefit of less/easier cleaning. With my volume of shooting it may not be worth the $$, but to each their own I guess.
We used to have a saying in the Army, "If it ain't broke, fix it till it is." I try to keep that mentality away from my gun cabinet. That being said, if I hit a plateau in accuracy with my muzzleloader I may well being sending him my $60....