I did Units 1/2 last year with stiglecs. That was excellent in terms of my development in foundation for Bio. However, if you are going straight into 3/4 Bio with stiglecs its got its good and bad. Good = Great knowledge. But you should know Stigs is hella tight on how he marks. Small discrepancies = minus 1/2 - 1 mark. It's almost impossible getting full marks on SACs with him. He even said in class last year, only 3 ppl got full marks on his sacs in the past few years. [that's how i remember it]
Added from that, I heard that coz of his sacs, the highest mark for one year with stigs was 46. S:
However, the good thing is, you actually learn biology

This year i have roberts, who makes bio lots of fun LOL. And his jokes actually get laughed at (you'll know what i mean)
and after stigs 1 year of bio foundation, me and a few other mates agree he isnt the teacher we want for year 12 .
Anyway that was really OT.
I reckon studying is all of the things you just mentioned. What works best when I learn is trying to explain concepts to someone (or myself) as that really consolidates the info!