Although I ride fairly regularly on Zwift, I usually sweep, and avoid double draft rides. Today I was pulling a lot on a ride with double draft on and noticed odd behavior: neither of us changing pace, riders behind me doing about 0.5 w/kg less would regularly shoot past me and then quite quickly fall back again. Pretty often.
After a while I started thinking that this looked like a poor engineer’s implementation of an echelon. Any insights, opinions, similar experiences?