Just had a look at the 'Gammons' advertised on Herp Trader atm. I've had Gammons from the first clutch that SXR sold a few years ago... The animals in the photos don't look anything like any of the Gammons I've seen, they look far more like coastals. The snakes illustrated by Kenshin are obviously Gammons - the rich chestnut colouring is very characteristic of them, and my babies showed that almost from the time I got them. Now they're adults they are still beautifully rich in colour.
Not sure about the genetics... but they are unlike any imbricata from the west coast as well...
Jamie