I have the 513's and although they are much more comfortable than stock, I wish I had gone with the 515's instead. Will probably look for a 515 and change it out this winter. I also went with longer cables and wiring, just because I did not want too much stress on them or stretched too taut. I went long enough to change out to 12" or so, just like you I could not decide and didn't want to do the tall apes thing.