Quick note: If you are doing the neck ribbing, I found that smaller is better than larger so what I have been using as cut-out dimensions is instead of 19 5/8' X 3 1/8", I have been using just plain 19" x 2.5". You get a tighter, more low profile collar that doesn't bug out(if you've made a collar slightly too big you will know what i mean) and it also doesn't stretch out and sag like the collar of an old t shirt.
Also, those looking to buy a crew that I've been making, buy a pattern set, commission a custom, or check out my sizing; my thread should be up in B/S/T by tommorow night.
And again, thanks for all the positive comments guys.