. . . because they can't get past "which bike is faster for my first sprint?" arguments. Nice problem to have. So keep the Boras and disc. (I'd keep the Bora and Zipp disc too. Cha. Ching.) If the Zipp/Blackwell combo is for racing, then you aren't racing on the Mavics. And since the Mavics are carbon, you probably aren't training on them, especially since you listed the Easton as your training wheels. And the Cosmics are top-end enough that people will grab them off eBay. Since the Easton's are stock, they are probably the EC50s or EC70s. But looking at your wheel collection, you may look at the Easton as the ugly step kid, or a reliable workhorse for rides in the rain or trainer/roller rides. If they are any of the EC90 series, though, I may keep them. But those Toplolino are so cool looking and unique, I'd keep them for training and novelty (they have kevlar spokes). So, if you get rid of one set, I'd lose the Easton and train on Topolino. Problem is, stock wheels may not move (sell) so well. If getting rid of two, I'd also lose the Mavics because you can race on the Zipp/Blackwell mix.

the eastons are the vista sl . . .

Great advice Trisooner, and while we are on the topic......I am planning on getting aero wheels soon, but can only afford to buy one now. So should I get a front or rear wheel?? Which would give me the best benefets??

yes, shipping is a real killer, and prices at the lbs(es) are pretty high. i ended up selling the eastons on craigs list, and am thinking about maybe selling the blackwell research and just using a bora or carbone with the disc. thanks for everyone's input.

btw, it seems that a front wheel might have more aero advantage than a rear, because the air going over a rear wheel is already dirty. then again, a disc seems pretty good. not very scientific research on weight weenies, where people remember far more physics than i . . .