Devein'n shrimp, easy way
You all probably know about this, but I did it and it was great! These were big U12 shrimp, head on. Gotta take the head off for this or cut the mud vein up near the head.
I had seen this done somewhere before but couldn't quite remember, anyway. Head off, shell on, take a toothpick and enter the "joint" in the shell above the tail, you'll find you cant go right at the tail. Go just below the vein, you'll know, and pull toward the back and "up". It worked on 95+% of the ones I did. No cut'n or anything. went so easy.
Even if I need to butter fly, shell off and all I will probably do this. Just worked so nice.