Tom3, interesting 10spd 12 to 34 you set up there. Nice 12,13,14,15,17,19,21 spread, with the larger bail out ish 28 to 34 jump.
I rode a 50/40/24 a lot, so know a 16t jump in real life, don't you find the 20t jump annoying?
In any case, like you said, if the 70 whatever g.i. top is fine for you, you really do have a lot of nice close gears in that range we are riding in most of the time, must be nice around the cruising speeds that are so common.