I have a couple (three, actually) pick guns.
One really old no name. It moves the needle at an angle. Works okay when you understand the lock you are working on.
I also have a Sparrow double tap and a Brockage which is basically the same as the Sparrow.
They both lift the needle straight up with no angular component.
Any of them need practice just like SPP to be any good with it.
The two different forces applied dictate different use and so you tend prefer one over the other.
(At least I do)
If you use one, which and why?