Pulled the trigger recently on my first pair of Epaulet trousers: Regimental Twill Walts in Khaki. Thrilled with the fit, details, etc. and I'm already looking at duck canvas.
I ran these through a wash/dry cycle to get any shrinkage out before their trip to the tailor. While they shrank a bit in length, the overall fit in the waist stayed the same.
Regarding duck canvas fabric - can I expect the same results (very little shrinkage after wash/dry) if I went with the same size as the twill?
Someone just asked this the other day, I ran my duck rivets through a cold wash / low heat dry, and lost over an inch in the length, but there was minimal shrinkage in the rest of the garment. I still had to get the waist tailored - the waist on a size 34 fits me really well, but I special ordered a 35 because I wanted a little more room in the thighs and seat.