As you say, catching a trend is easy with an MA. What I have experienced is that the whipsaw periods eat up all the profits obtained during the trending periods. Since you don't provide any evidence that a 12 period SMA method has positive expectancy, I tend to doubt your claim.
I don't use MAs anymore, and stick with oscillators. No, I can't provide proof of positive expectancy either, but I do like the higher winning percentages over trend following with MAs.
I am not going to do the expectancy calculation work for you for free. I am just an individual trader. I am not trying to sell anyone anything. This was just for research and discussion purposes. But everything I am seeing shows me that it gives you some small losses during choppiness but keeps you in the trade during big gains and keeps you out during big losses. For me it looks pretty good. But you can do whatever the f you want. I could care less.

