Hi Jarek,
Thank you for posting this question.
This Breakout calculator started as a small project on a spread sheet and I used the simple moving average as it was straightforward to calculate. Later on, I even did not think moving to an exponential moving average.
And yes, you are right, an exponential MA would have worked better especially for breakouts/breakdowns because it moves faster than a simple MA (See the red lines compared to the blue lines below).
Now I do not think that the results would change much because good trades should also show strong results in terms of sensitivity to the distance to the average, which basically is what a change of the type of MA would do.
Anyway, I'll test the EMA and will compare results. But I will most probably change the code of the Breakout Calculator to use an EMA, which is the right thing to do. I use an EMA method for all my other tools and should have also used an EMA for the BC.
Pascal
PS: Thank you again for your question. I will extend your current subscription with a free additional three months access, starting from January 1.