Just got some new Persols, after needing sunglasses for awhile. After wearing them for more than 5 minutes or so, I get red marks where the 'pads' touch my nose. These are black plastic frames. The store has already reshaped the arms to alleviate squeezing at the temples, and curved the tips of the arms a bit more around the back of my head to compensate. Is there anything that can be done in the nose area? Can they widen the bridge of nose somehow? I was thinking of making the tips of the arms at the back of my head a little more straight since those might be pulling the glasses too tight against my face, but I think that might lead to overall looseness or them falling off. Anyone fixed this problem?