I shortened the head end dog bones to 33" and the foot end to 26". I slept all night and it was fine for me. Maybe a little less stable, but for me it is perfectly fine. YMMV.
Overall length apex to apex is 10'3". I am happy with head end length of 33" but will reduce the foot end to 24" and stop there.
I have to say that the RR gives the best sleep I can get. I really like it.