I have not set up gears on this bike yet. maybe this fall. Ian did a great job with these drops. with my surly I had to loosen the brake and move it out of the way to take off the rear wheel. I do not have to do that with this bike. I suspect with a derailleur it will be harder to remove the rear wheel.
with the 8mm bolt on hope axle/hub I have not had wheel move at all. I had to use a tug nut when I used a QR. and the brake side still seemed to drift.
more testing to come.
I used to run SS with vertical dropouts but I got a wheel built around a White Industries ENO eccentric hub…it came with a eccentric brake adapter as well which made it easy for removal of the wheel.