Traditional backstay antenna tend to worry me with putting additional points of possible failure in the backstay. On prior threads they talk about the GAM antenna and I read both positive and negative on it as well.
I have a icom m710 but have not settled on a tuner yet.
Our boat is a 38 irwin cc 1985 and right now just cruising the great lakes. However that will change next season and hopefully be heading to the Bahamas.