Fried Butterfly Shrimp are not difficult to make at home. I usually start with frozen shrimp I have thawed. The only drawback to making them is that they are time consuming to make. And they are only time consuming because shrimp are small. Even large shrimp requires you to repeat these steps at least 6 times per person if you are serving this for dinner. Since I tend to buy them frozen, it allows me to buy larger shrimp when I find them on sale.
You could probably get away with 2 or 3 smaller shrimps as an appetizer, but if you are going to go to all the trouble, do you really want to mess up the kitchen for a few shrimp? Go ahead and coat all of the shrimp and freeze them before cooking.