I just took an oil pan off my Project1959235 engine after about 50 hours of operation. Since I modified it for Full Flow and put a Wix 51515 Spin On Filter on it, I wanted to see what was in the bottom of the pan after a brand new rebuild. If it were a standard bypass rebuild, one could expect a gray, bearing dust and crud at the bottom of the pan. This is perfectly normal. What I saw instead was a perfectly clean oil pan. Nothing but your normal yellowy oil (high zinc breakin oil). CLEAN CLEAN CLEAN. If all that full flow system does is filter bowling balls and marbles, its news to me. PROOF without any shadow of a doubt that full flow is clearly better in the long run. I credit the quality of the filter. WIX does the best job I think.
The proof is in testing, focusing on the issue using modern technology to ensure the process you use to test is legit, and not having blinders on.
I PROVE my results through additional tests, then provide the results both here and on my site.