For me personally, most of my shooting (100-300yd informal paper punching, blasting, etc) can be handled w/ Lee dies- FL and collet. However, for F Class 1000yd shooting I chose Redding Comp. Bushing, dies. I have never done a back to back test as I don't own a set of Lee in 6BRX/ 260AI caliber, however, it was an "eliminate variables" purchase for me. Everything matters at 1000yds. But, I have loaded 10's of thousands of rounds- maybe closer to 100,000 rounds (been doing this for 25ish years) with Lee products. They stand behind their products and they work.