Big Boiled Shrimp

Just got back from Pensacola...bought some 9/10 head on shrimp from Joe Patti's and boiled them one night...what's your favorite boil rec. Here is mine and they were great.

5 # 9/10 head on shrimp
2 gal water
6 oz Zat. Crab Boil
4 Tbls Salt
2 lemons, cut in wedges and squeezed
4 oz Paul Prudhommes seafood seasoning
1 Tbls Chinese Red Pepper

Bring mix to a boil, add shrimp, boil for 8-10 min, remove from heat, soak for 4-6 min. Enjoy!