For us, this is what we do for our .38s
Smokeless:
125 TC coated in Rifle
125 TC hard lubed in pistol
Black Powder
130 RNFP soft lube for all. Recipe contains bees wax, Crisco, and a bit of canola oil.
We use different bullet styles to add a second layer to easily differentiate between black and smokeless. Nothing worse than having a couple of boxes of bullets spill out and not know what you have where. Ask me how I know!
We also do the same for our smokeless. Rifle uses new or once fired brass. Using the coated bullets, we know which ones are rifle pretty easily!
Probably a little more than some folks will do, but it works for us!