1995, my ROI because I worked my butt off was almost 12%. I went 57-32 in the NCAA football, haven't sniffed even close to that since then. I had a run of two weeks just before the All-Stars in baseball where my worst day was 5-2, had a 10-0 and a 7-1 last two days before the break. Talk about absolutely hating that frickin meaningless game, I could do no wrong before and I seriously cooled off after it
Good years generally though are when you stay steady, your worst losing streaks are mild and often follow hot runs so they are somewhat anticipated. The roller coaster of two smoking hot weeks followed by two ice cold weeks is probably tougher than anything so I would say most of us would even be willing to give up a little profit if it means we have a very steady and consistent winning year. Then again the guys that love the action and gamble can't enjoy anything than the highs and lows of a rollercoaster year so I suppose some would disagree