I haven't had an open diff for so long I'm pretty sure I wouldn't like it. I was out driving just the other day and with gentle but increasing throttle was able to induce a nice drift around a corner and control it well using the throttle. Throttle over steer wouldn't be nearly as easy with an open diff, it would be more like grab a handfull of e-brake or jerk the wheel or possibly a clutch dump. Some other technique than I've gotten used to.
In Hawaii we had "drift sessions", organized events specifically FOR drifting at the road race track there. There is no question what I learned from drifting has made me a better, SAFER driver on a regular road race track and on the street. The SCCA guys hated the drifters by the way, hated them with a passion! If you got sideways during an SCCA solo event you could be accused of "drifting" and disqualified. Shesssh, gimme a break!
