hey guys. don't know as much about steel frame semis as much as I do their revolvers...I'm a young buck so didn't have access to them in their heyday. ....I can't find a 6906 local and I'm trying to get an idea of grip size before I drive to look at one.....I'm wondering how grip eidth/circumference compares to an M@P with medium back strap? I like the small backstrap but I'm comfortable with the medium. just trying to get a rough idea if it will work for me...also I've heard you can get a curved grip that makes the 3rd gens a little more ergonomic? thanks in advance for any info guys! 
