For Goodness sakes, all this voltage sensing temp comp stuff is such BS in real life!
Today, eg, we had sun, rain , heavy grey cloud, more sun , then more rain, sun, grey cloud- IAW a typical west coast day in April.
The solar was up and down, all over the place, all day. What good would a fancy temp comp, zillion dollar solar controller do better today than the average $20 eBay special (which I have and find to be perfectly good)
What a crock! Ignore the "controller snobs" and get real IMO! (Sorry about that controller snobs, but you are trying to make people spend extra money that could go to something more useful)