you guys are gonna love me because the bike I ride most has 180mm cranks--- dura-ace that I like quite a lot! most my other bikes have 175 or 172.5(I am tall) but i have no problem with the 180 and love the ride so never have thought of changing it. I do ride up hills quite a bit with is so maybe that makes me like it better - its also not geared for "spinning".

I also have over-large muscled legs that have always been better for sprinting and strength than endurance and reps- so it may just be a case of pickles for peter.