Once again the obsession with weight. While I applaud your personal weight loss & the adoption of a healthy lifestyle, what is one willing to spend to reduce bike weight a little bit? For a team + bike weight of 370#, 5# is only a 1.3% reduction. On the flats, it won't make any difference. If you presently climb a hill at 10 mph, maybe you'll be able to increase that to 10.13 mph. Is that significant?

We've been passed by teams on heavier bikes & have passed other teams on lighter bikes. The weight of the bike rarely makes any difference.