flame me too then.

i'm a noob and recently went to the lbs for the same thing. the owner almost wanted to talk me out of buying the mirror. he said with experience i'd get good at safely peeking over my shoulder at regular intervals... i bought the mirror anyway - the kind that attaches to the helmet - and used it once then threw it away... found that looking for the little mirror was taking my eyes off the road longer than peeking over the shoulder...