50+ years as active bicyclist. In my fifties switched to recumbent but held onto one DF - my 1950's Rudge Sports which has a Brooks B-66 that is about as comfortable as it gets perched upon a DF bike. I enjoying wrenching all types of bikes, but for personal riding it's recumbent or the occasional short ride on the perch of the Brooks saddle. My only regret is that I didn't get bent much earlier in my cycling life