I've been looking for a "close" out of the box GMT and after discussions with Kbiz decided on the 186. I did quite a bit of gen to rep comparison and about the only thing I could see was a need to bring in the CG lever. The mag is good, the dial close to spot on and the date font really close to gen. The back is close. So, an email to sead and the question - how about a sead cg to fit. Sead agreed that the only thing needed was the CG. So, here it is with a sead cg and I think looking quite accurate.
I've mixed in a couple of gen shots as well so you be the judge: