I found with a front Locked Diff it lost turn in, so I unlocked mine

as for the front one way, I found it would just plough through corners, it wouldnt kick the tail out as there was no power applied when braking, just a free wheeling action which didnt help

So my Drift TT-01 runs a Stock front Diff and a Blu Tac locked rear.. Kicks the tail out at will and is easy to keep it out and will handle Technical and Broad Drift..
(this is With PVC Tyres not Drift Rubber)