I have no problem with the turn signals, but I hate the horn. I have over 70K on GS's and still hit the left turn signal when I go for the horn (try riding in the DC/Baltimore area and not use your horn). I have rented Harley's and have not had a problem with thier horn's and they have the trun signals on the left and right sides.
For me, if going to a Japanese style trun signal gets a normal horn button I'm OK with that.
Never lend a friend your Pacific Coast. Unless you like scratches and want a beer annuity