Just trying to learn some things. I got a wheelset on ebay a while back in which the brake track was a bit more worn than I was happy with, but I got a good enough deal (and returning would have required transatlantic shipping), so I didn't complain. Eventually, I'm going to have to rebuild these wheels. Currently, the wheels have Mavic CXP-33 rims on them (laced to Chorus hubs with some sort of sapim spokes). I like the slightly aero look of the rims (even though I'm too fat and slow to really take advantage of them), and have thought that the replacement rims would have a similar look. The thing is, the more inexpensive rims in that style (especially if I want to try a wider rim) don't appear to have eyelets (the current mavic's don't have them either). Every rim I've worked with in the past (a limitted number to be sure) has had them, so I was wondering, do you usually get nipple washers to take the place of eyelets and protect the hole from cracking/nipple pull through? If so, how do you chose the appropriate nipple? Do you add 2 mm or so to the ERD to account for nipples?

Like I said, this is just sort of for general information. While my current brake tracks don't look new and I can feel a little depression if I go gently over them with my fingers, I don't think they're worn enough to need replacement right away (not sure how you know when they do need it, though), so I'm just trying to plan things out for the future. Thanks.