I’d recommend just about any other way than to boil them. Steam them if you want them just plain like that. Personally I would grill them or at the very least, broil. Seasoned with a little salt is all that’s needed. By cooking with an actual fire vs water, you’ll char them a bit and bring out more flavor. Water cooking will cook them but won’t enhance any flavor and boiling will actually dilute the flavor.   

I’d cut the shell down the back and split open a little, add a touch of salt and put them right on the grill for only as long as needed to cook thru and that will depend on size. An average 4-6 oz tail won’t take more than 3-4 minutes per side. Pour a little melted butter on them right when you pull them off the grill. Keep it simple.