« Reply #1 on: August 24, 2016, 11:02:03 PM »
Can't really comment on the Oasis system since I've never used it; I've used D'Addario's (previously Planet Waves') Two-Way system starting with my first Taylor guitar. I use it year-'round and it seems to keep my guitars happy.
I'd have to go back to the Taylor literature that came with my Taylor guitars ("Symptoms of a Dry Guitar") to figure out whether excessive dryness would cause any string 'buzz.' It's possible your guitar's truss rod just needs a bit of a tweak; 58% isn't far from the ideal humidity level, and the neck relief can also change with changing atmospheric conditions, even if the rest of the guitar is properly humidified.

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DN: 360e, 510ce, 510e-FLTD, 810ce-LTD (Braz RW), PS10ce
GA: 414ce, 614ce-LTD, 714ce-FLTD, BR-V, BTO (Makore, 'Wild Grain' RW, Blkwood), GAce-FLTD, K24ce, PS14ce (Coco, Braz RW, "Milagro"), W14ce-LTD
GC: 812ce-LTD TF, BTO TF ('Sinker'/Walnut, Engelmann/"Milagro"), LTG #400
GO: 718e-FLTD, BTO (Taz Myrtle)
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GS Mini 2012 Spring LTD (Blackwood)
T3/B: Custom (Cu & Au Sparkle)
T5: C1, C5-12, S (Aztec Gold)