The true test of a capper is W/L record. Not units.
Tweety, is that you? You said some dumb shit like that on Twatter a while back. "Id rather a capper hit 57% all yr around & win 100 units then a capper hitting 26% & winning 43,754 units. Am I wrong for thinking that?" Exact quote, wrong grammar and all. He is the guy people in the service plays forum actual beg for and follow from time to time.
J, this is absolutely 100% FALSE! There are many good cappers that go under .500 in MLB and NHL and end up plus units at the end of the season because they know when/how to play the dogs and the RL/PL. I would rather a capper go 40-60 +35 units than go 60-40 +10 units. The same can be done in football and basketball as well with varying units. I'm not saying varying units like (9)1x losses then (1)10x win is right or the way to go, and usually people varying units don't wait that long to up units, but I get what you're saying. And they couldn't claim a winning record at 1-9, only +units.
Plus, flat betting works for some, but not others. Some people vary their units because they like a play better, or see more value in their side, or whatnot. Some people just like to stick to the same amount each game because they find themselves not doing well when varying units, or whatever.