This was one of those weird moments where I felt like I used to know exactly what to do, but now have no clue because I know more, but don't know how to balance all the concepts (pun unintended).

What sizings are people using on flops such as Ts9c8c in general?

Do people use different sizings for different parts of their ranges?  

Let's say we're IP 100 bb deep with initiative in a single-raised pot, BTN vs BB.