I'd say a lot depends on how well you handle the bike. I think if you show up for a group ride of youngish (like, under 50) riders, they may be wary of you, and in that situation you'll want to demonstrate that you can hold the pace and hold your line as well as anyone else, and that the DT shifters don't make you a liability to other riders. The shifters per se aren't the issue, it's how you use them. Are you adept at reaching down with one hand to shift one or both levers without looking and without either slowing down or deviating from your line? Are you good at anticipating the gear you'll need, since when you hit a steep pitch you'll have to be in the gear you need BEFORE you get to it?
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