Phil - I am very curious to hear, when your S7's come in, whether one can adjust Vcore and if so by how much.
From the work I have done on the S5, in particular the V1.91 Hash Board that has an oscillator for every 4 pairs of chips, as opposed to one for the whole board on all other revisions. I think that the S7 (and the s5+) which look to have an oscillator for every trio of chips, my expectation is that it will downvolt to the bottom limit of the chips?
However the proof will be in the testing...
Rich