First of, thanks Hog. Got your Pm. Going to think about everything. Put the diff mod aside for the moment. Bought a spares kit from a friend really cheap and got 4 xtra diffs with it with ceramic balls and everything.
Have been testing the car a lot these past few days and have not felt The need to change anything on it setupwise. It just runs perfectly on our turf track. It jumps beautiful and have not corrected it ones in air. No need. It has got some amazing stearing in both low and high speed. Stable as hell and it is planted everywhere on The track. Really impressed with it.
The only modification I have made is to remove all aditional brass weights and found the balance to be 45/55 front to rear witch suprised me since everything in the car is moved forward. It only weighs in at 1610g.
Standard b44 seems to be heavy towards The rear. My car handled the rough section better than B44 even though it is lighter. Can push it hard even though grip level is very high.
I am really really pleased