I use full BS on Chips, Pitches, and Flops.
Punches are little trickier. I use full BS 40 or below, usually none above 45, but between 40 and 45 it varies.
Full shots and hard punches, even out of the rough, I put none, a little BS or TS depending on wind, slope, and yardage.
Headwinds and Crosswinds can still cause spin with no spin or even top spin, so make sure to account for that.