I don't scroll for so long but I have to say that I didn't done that (jet)
I went to what we in holland call a "technical school" and between the age of 12 and 16 years we had lessons called "learning tools".
The teacher "rubbed" it in how to place a new blade. (and some other things!)
I often remember him saying "pull the saw to let it work, don't push, the weight of the saw should be enough.
once when I was 18 I had to saw a stainless steel pipe...... and guess what... I reversed the blade with the consequence that the saw bounced of into my thumb.
I directly had to think of my teacher.
I guess that these lessons helped me up to now to place the blade right.