Try starting out using the handbrake to get it started, and move on from there. My 32 is fairly prone to oversteer even though I have std turbo. The biggest difference I noticed was when I added a front swaybar (I picked up a cheap ARC swaybar from one of the guyss from the forum). after this the car was more prone to oversteer even though at the time I was only running 11PSI.
I had a set of HKS coilovers installed then (with a stiff springrate), but I have recently changed them over to TEIN HA's and HR's. (PM Me if u r interested in buying the HKS coilovers from me). And I also had aftermarket Caster rods fitted which seemed to make the car easier to handle while oversteering.
With HICAS you could always buy a lock kit, but My 32 has Hicas and it hasn't yet proven to be much of a problem
good luck and happy drifting
46n2