I know a CFI who has a neat solution to the problem of the arms in the earpeice - just sits them on the bridge of the nose as usual, then rests the arms ON TOP of the ear cuffs. Looks a bit funny, but you can't beat experience, and he owns that.
Thats exactly how I have been wearing mine for the last six or so years. Dunno if he owns it, but its a good plan. stops your head getting squashed and your headset leaking noise. I have to do it coz me nose is crooked.