7 Victors and 4 spikes isn’t that bad. We have 7 Victors and 2 Spikes, and I imagine Sparky is probably just using a couple more cylinders than us. We’ve gone up to eight victors before, and I’ve seen as many as twelve used.
As per recent QandA traffic, grounds from the victors are not
required to be run directly to the distribution block, but wiring all
40 amp ground returns to the distribution block, as shown
in the provided wiring diagram, is a really good idea. I have
seen a lot of fried pushons and these were operating at currents
much lower than the CIM motor draws.