Allen Edmonds newbie here, I want to order the webgem Neumoks. I have in the past tried on Park Ave's in store, and the 7D where snug but fairly comfortable. Some mentioned on Reddit that the Neumoks are built on a variation of the 5 last and are slightly narrower, but I didn't find any mention of this on AE site. If true, is is something to worry about (that is, if I could fit into a Park Ave, would the extra narrowness on the Neumoks work out with a little breaking in)?
It's really hard to say. Standard balmorals (Strands) fit me perfectly in 8.5D, standard bluchers (Kenilworths) are too long in 8.5D, lined Rough Collection balmorals (Elgin/McTavish) are too long in 8.5D, and unlined Rough Collection balmorals (Neumoks) were way too narrow for me. All that is to point out how hard it is to really tell without trying them on. It's the same 5-65 last, but various reasons could account for the tighter fit.
But yes, I found them to be very narrow. Good news is they opened my eyes to the fact that I might need to be wearing E's or wider.