Regen interruptions

I know everybody should know all this by now, but I'm a slow learner.
So I bought a Cascadia from MHC in Oklahoma, and did not realize that it was governed at 66 mile per hour until I got quite a ways out of the city.
After giving it some thought I decided to leave it like that, and keep me out of trouble. I don't run hard anyway.
After having it for 4 months, I've noticed that if I haul heavy Freight into Pennsylvania, I can figure on stopping about halfway through for a manual manual Regen.
My understanding is the changes in engine load, like downshifting while climbing a hill, can interrupt passive Regen, but it took me a while to note that the governor may be interrupting it as well. The downside is that I can't find anything anywhere that mentions this. So the question is, is the governor likely to interrupt passive Regen in the mountains, every time I get to 66 on the way down a hill and it cuts out, or does that have nothing to do with it and I need to get into the shop to get half the system replaced while it's still under warranty?

 

I appreciate it. I think I'll just leave the speed limiter alone. I like the mileage I get at 65. as long as it's not going to cause problems with passive Regen, then I'll just get it into the shop next time it throws a code and let the warranty take care of it.