Ideas and opinions needed
But once cry once, however, buy something you don't need and cry over and over. Ffp seems to be the best but if your are only going to shoot at highest power sfp would be fine.
Yes there are rings for $20 and rings for $200 it's more about decreasing the variables in precision shooting. The least amount of play and ability to not second guessing your equipment and you'll have an easier time in the long run. Something I learned by trying to cut a few corners and ended up pulling my hair out trying to chase down inconsistencys.
So you probably don't NEED $200 rings but when your grouping starts opening up that's one less place you have to look.