There are a few technique points mentioned in some of the basic courses, one of which was the tip to avoid flaring the elbows when doing the thumb under/over technique. I have to admit that I was an offender of the flaring elbows. While I am now consciously trying to fix it, I notice that I tend to cut notes short when trying to avoid flaring the elbows. I might need to set up a lesson at some point but if there are any tips that can be provided to help us with this technical tip, that would be great. I must say that the tip was a revelation for me. As long as I have been trying to play piano and scales, I have been flaring my elbows (until now anyway) but now realized that it is never something that you see an experienced piano or keyboard player do. It is most challenging working with the 2 octave scale fingering that has the thumb cross the 4th finger.