I agree, stiffen the jog dial. I have to go back and forth until I can be sure that I'm at the loudest volume. My volume is not high enough for even 25mph rides.
I NEED MORE VOLUME! Ever since I upgraded to the latestes (v4.0), I haven't been able to hear my music; this is my primary use. I'm very dissapointed but I'm hoping this will be resolved soon.