I almost always use “1” for my pull setting. It guarantees my pitchers get their PCs and allows better fatigue control. I can draft less innings because there’s less ambiguity around how many IP I’ll need.
Occasionally, in progressive leagues I will use a “5” setting for a pitcher I am using in a tandem A role, to try to get them out as quick possible and to my tandem B. This usually guys with <60 IP and/or guys who are horrible, but I still need to get some IP out of and I want them doing the least damage.
I don’t really use any other setting.