You may get a variety of answers to this but for me, I'd probably cut a 1/2-coil and put them back in. Then another 1/2 coil for any extra drop needed.
I *assume* you've driven these new springs around for a few hundred miles to let them settle in, as a new spring will definitely relax over the first few hundred miles.
I had not heard of a 'drop pocket' a-arm but......I don't even like the sound of it. lol
It is an old LowRider trick. You cut the spring pocket radially then add a two inch strip of flat stock that you have coiled around a light pole or similar cylinder. That will create a two inch deeper pocket for the spring to sit in. With this trick you can fine tune the suspension so that it sit even after the surgery if it didn't sit even before. You taper or cut the filler strip to the desired amount you want to drop the car. It is a way of lowering the car without affecting suspension travel or geometry.