I have this very odd experience when calibrating my lens', the AF-Finetune setting is not identical for AFS-S and AFS-C, worst example is my 70-200 Tamron F2.8 USD VC which in AFS-S seems to be ok with AF-Finetune OFF, however, when going for AFS-C, it benefits from +14...
Also when browsing through my shots, with AFS-S, the 'keepers' are must less next to AFS-C..
But one thing I noticed is that it tends to take up a lot of battery? Keeping VC on and using AFS-C for close up portraits indoor can drain battery relatively fast.
Personally I stick with AFS-S for landscape, but lately that has pretty much been it... Though sometimes I use it for street too - but people, animals, sports and even portraits I strictly use AFS-C... Most of the time street is AFS-C.