Mark,
Looks like my flare spacing is about the same, between 1/4 and 3/8 inch. The 5x3 flares more and retains energy better for me. The 3 x 4 1/2 uses more energy earlier. I have never had a ball burn early on me until this one. I have decided to shine the 3 x4 1/2 or maybe only use it for tournaments where I might see more longer oil....Hope this helps.. Thank you
--------------------
Todd Loy
Roto Grip King of Them All!!!!