I went to both TSFX and Derrick Ha last year for Methods. This year I'm planning to only go to Derrick Ha for Spesh.
TSFX= question spam (at least with Irena Methods...) and very comprehensive notes.
Derrick Ha= greater understanding and moreover a more thought-provoking lecture.
I went too Derrick's and TSFX for Meth last year.
After all that I can rightfully say, atleast for "Maths" its useless to go to lectures!
Because Maths, is only learnt through the hard yards, practice practice practice.
You can never expect to go in, and come out a grade better?
Correct me if Im wrong.