VW,
Firslty congrats on making steadfast progress through the exams and second for the consistently high scores! I only used Thom for my Air Law and found it to be ok.
I used Pratt (AFE) for all the others and found these to be much simpler and suited my style of learning. Everyone is different in their preference but you may be able to find someone at your club who would be kind enough to lend you their book to see how you feel with it and then perhaps invest in a copy yourself?
Not sure if it helps or not but I found most of Met to be incredibly boring, this may be a factor for you and not so much the book?
Anyway best of luck i'm sure it will work out ok.