I want to take advantage of the MTO promotion but I'm a bit hesitant since it will be my first pair and I need to get the sizing right. I visited the NYC location yesterday and tried on an 8.5 Forest Derby, it felt amazing. I typically wear suits and would prefer to purchase an oxford which is where I ran into some trouble. After trying a few different sizes, I landed on a 9 Rain Oxford but wasn't sold. Based on how these shoes are made, the variation between the lasts, and obvious differences in derby vs. oxford fitting at the top of the foot does this make sense? For reference, I typically wear a 10D in the 65 last at Allen Edmonds.