Beginning Studies - Your Help Please

My focus is on three very important subjects right now: improvising, theory and accompaniment playing. Once these are completed, my focus will be on adding material to the beginning section of the website where needed.

For those that have completed the beginning section of the site and are working on, or have completed, "Gary's Blues" (Tongue Blocking Study 3) and "The Strut" (Bending Study 3) please share with me...

1) Where you had the most technique DIFFICULTY in your studies on the site... this is technique focused and how well the study material/songs helped you.

2) Where you had the most CONFUSION in your studies on the site... this is not technique focused, but points at which the "this doesn't register light" came on, and stayed on for a while.

3) At which point(s) you could have used more filler material to keep you amused as you were working through the more technical sections of the site (bending for example).

I'll post this question in the General Discussion part of the forum as well so that you can reply. Thank you very much for your time in advance!