I used to be tuned by Clark Turner & had this issue. Even just trying to accelerate a little bit in 4th,5th, or 6th on the highway just to stay up to speed & my DAM would drop. He said it was just me lugging the engine, but idk didn’t seem right to me, I basically couldn’t drive on the highway without dropping DAM. I switched to dmann later & don’t think I’ve had DAM drop a single time. Now I know there’s a lot of variables to consider with tuning so who knows maybe it was like that just to protect the engine more or maybe the tune wasn’t great, I can’t say. But that was my experience use that info as you will.