I didn't feel like going to another site to check and I'm sure this has been asked a million times but...

I'm tempted to buy some Sammy's but never tried TR's before. I'm normally a 26 stretch, 26/27 rigid in CoH's and SFAM. I'm interested in the Sammy Medium Premium. What size should I get?

Another question, which TR styles w/ flap pockets does not have the twisted in/out seam, if such a pair exists?