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I bet if you buy it, and actually ride it, it would drop your lap times by a few tenths, maybe even more (most people would be dropping full seconds, but you're in that range where a few tenths can be hard to come by).
And yeah, I was waaaaaaay out of shape my last season of racing. It sucked. I really want to return some time to see how much more fun I can have being 60 pounds lighter and a lot stronger.