I moved from the 11s to the 22s some time ago. At first I thought it was very easy. After 100 22s my ROI was 40% or something like that, but suddenly I lost(Not ITM) 27 times in a row. I had to go back to the 11s.

Then I got someone here on 2+2 to look at some of my HH. I was told, some things which I did wrong, and now I 4-table the 22s with an ROI of approximately 20%.
So a big thanks to Zambonidrivr here from 2+2

Best regards
Thomas