Typically, for BRM purposes, you put 1 unit on each bet. For players who can quantify their edge well, I've seen as high as 2 units per bet. So to say you're up 20+ units is misleading since you don't have that a win percentage that high.
Right yeah, I just kind of splash around since it's so low for me. I only bet like 5 or 10$ a game and my "roll" is around like 5k lol. I just do it for fun, nothing too serious, so I just track all my bets in one measurement for my own interest. I even count any parlay's I hit in there, so that accounts for the variance. I could lose 1,000 5$ units this year and it probably wouldn't have any real effect on me monetarily.
TBH, I just hammer MasseyPeabody lines usually
Also, fwiw, that's the only time I've ever bet more than 1 u on a game. Done one 2u bet, 1 4 u bet and that's it for me. The rest are all 1 or .5 units