Hi , as I thought the issues with car control was my wheel settings, adjusted a few things so much better i can catch the the car so much easier now , i think because i can feel it going sooner.
Also tried the top listed setup above didn't really affect handling but its definitely quicker
Just a thought , can you put different grip lvl's on the same track, ie have the high line slightly more grip than the low line. Right next to the wall on high line a little less grippy ?