A:
I like the size 2 drop shot hooks ... because the point isn't bent in (like on the circle hooks) and they seem to miss fewer fish. I don't use any drop shot though.
I tried some number 4's and felt like I missed a couple more fish ... hard to tell for sure. But the size 2 are working great for me.
Do you use an o-ring - they're a great way to prolong the life of a senko for all day long...