I use size 4's for fishing wool, sometimes a size 1 for wool if im after springs cause they will straighten out a 4 alot easier. I use 1/0 gammies for fishing with roe because i like using bigger chunks most of the time. and i will use a any of these bigger hooks for pink worms because i tried the small hooks with them and ended up with lots of ripped worms but no hookups
tied some with bigger hooks and resulted in a beached fish
the more you fish the more you will find certain hooks and hook sizes you use for certain things.
just like when im fly fishing the hook sizes are all over the places depending on what im targetting and what type of technique im using. ahh the lovely sport of fishing, who the hell ever said fishing was a cheap sport