Another thing to consider in crank length is what cranks are they.
I have 175mm Dura Ace track cranks and the arms are about 1/2 tighter to the frame, (lower Q factor) than my 172.5mm Sugino RD's so the pedal strike is actually less of a problem.

I think I still prefer shorter than 175mm but the DA cranks were a good deal on CL so I had to try them. And they look good.