Jaka does bring up an important point- you want your high rates to be set with as much servo travel as your mechanical linkages allow. My radio goes up to 150%, but with the standard L bend that I use I can't go quite that high without it binding. So I do as he said with the one exception that I go as high as I can without binding, then get the high rate throw set via the mechanical linkage if I can. Sometimes I do still wind up turning it down anyway, but at least I'm using as much torque and reducing slop as much as I can and still get the throws right.