Well turns out one issue was I had some of the settings from my old computer (as I had copied my ISBoxer files).

So I wasn't using all my cores.

I've read posts on picking the core for each toon, and also just letting the OS, I guess I'll give each a try and see how things go.

Also I guess I was being kind of insane with my slave settings, really now realy to have everything on high hehe.

I went through and lowered most settings to the middle one (shadows /water to lowest).

That seemed to help a lot.

Only one issue left that I'm unsure of.

I have periodically had an issue where one slave screen would start to flicker widly and draw pieces of polygons over the top of the image , at first I thought I was in the middle of a couple of gryphons, I was able to reset it by changing the resolution of my window, then setting it back. Happend about 3 times in 4 hours.

Also had one solid freeze of one toon with mostly a blank screen. I was able to fix this by alt -tabbing out into another app then coming back.

These last two seem more like video/card driver issues. But I'm hoping with less insane settings on my slaves I have removed this one as well.

T