I had to use up some batery so I used a elevator D/R swith set at 60% and guess what? At 60% elevator the problem is completey gone. Easy to toggle between 60 and 100% so I am sure that the trouble is occurring at some level OVER 60%

I needed a bit more to land though. Anyways, I don't quite know what to conclude about this let alone how to "fix" it since I'm not even sure whether it's a "problem"

While I was up I did many tight loops and many very tight circular laps both directions and all seemed well (except for needing a bit more elevator for landing) I forgot to turn the DR switcgh back to 100%. I'm curious to see how it acts when coming at me during slow landing when using 100% elevator.