I have one with the 2# spring in it and it is pretty good. It was a pain in the ass to set up but I have it breaking right around 2# with very little creep. I had it feeling great with no creep but it would double tap.
Not sure that the balls would get in the primer pockets very well but might be worth a shot. Let us know how it works.
Are you not using a separator? I don't find it that bad using a separator.
I am currently using two in each of my comp rifles. I have about 500 rounds on them and shot two matches without any issues. I ordered three more this week to replace some Jewell's.
Your right they both have advantages and disadvantages. You need to find what works best for you. There is no "best", if that were the case we would all be running the same rigs.