We just tried this on the server, no spoilers, but Energizing a Node that contains Humanis or an aspect that includes Humanis will generate Centivis for all 6 primals which can be transported via Vis Relay to a Wand Recharging Station for infinite vis of every aspect, usually at a good speed too.
Nodes in general seem a bit uncommon in this pack (I think all of the other tainted packs play with 300% and greater nodes), but most of the bases seems to have decent nodes (A lot more compound aspects than usual) within reach (Except Omega). And you can always bottle a node if taint is an issue.
Really loving the series Sapph, I look forward to seeing how you tackle the challenges presented. Good Luck ^.^
PS: Mini Tainticles and Taint Swarms both drop vis, and are spawned by immobile taint mobs, they can be fought for a steady trickle of every aspect of vis, but it is annoying to fight them, and much slower than tapping existing nodes.
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The TL;DR at the bottom skips the boring maths and examples, I rambled a bit more than needed
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PPS: I missed the last line of the post above so to add some more content to my post regarding Energised nodes.
An energised node generates CentiVIs (cVis) or 1 / 100 a point of vis. When a node is energized it takes the current value of the existing aspects and Square roots them (Rounding down to integer).
E.G. a 26 Humanis, 16 Ordo Node would be reduced to: 5 Humanis, 4 Ordo.
The Compound Aspects are Reduced until they are Primal Aspects, if a compound aspect reduces into the same Primal more than once, the extras do not have any effect. (E.G. Spiritus is made of Mortus and Victus, and Mortus is made of Victus. Victus is made of terra and aqua but 5 spiritus reduces to 5 aqua and 5 terra (and some other resources not from victus), not 10 aqua and 10 terra)
Finally if an energised node has more than one primal aspect of the same type only the largest value is used for each primal aspect.
The 26 / 16 Node mentioned above, reduces to (5 Terra, 5 Aqua, 5 Ignis, 5 Perditio, 5 Ordo, 5 Aer) from Humanis and 4 Ordo. The node would generate a base of 5 of each element ignoring the 4 ordo because it is less than the 5 ordo generated by the 26 humanis.
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TL:DR MATHS & Final Math
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Square Root of Value of Aspects, Reduce to Primals, Highest Vaue for Each Primal: is measured as ##cVis/tick (1/100th of a Vis per tick)
## cVis / tick * 20 ticks / second = 20*## cVis / second
20*## cVis / second * 1 Vis / 100 cVis = ## Vis / 5 Seconds
tl;dr The Square root of the value of the aspect at the moment the node is energised (rounded down) divided by 5 is the Vis per second recharge rate for that aspect. (Normal values are between .8 / second and 1.4 / second)