Well in answer to your question: "Long Feint Drifts" are better, Much more classier drift
Evidence:
Longer Feints, require much more skill.. Timing is critical in this instance, (swaying into corner) because having the wrong line will lead you off the road. Precise throttle and countersteer control, is cruical, either one can lead to understeer or oversteer. and when done properly it will lead to a perfectly obtained drift leaving you with much more satisfaction.
Opposed to "Snap Feint" (if there is such thing).
Where timing is done a split second before the corner, a jerk of the steering left and right.. into the corner with wrong line, full countersteer, full throttle.. edventually leaving you in a spin or leaving the corner short.
BTW: Nothing about Feint is slow.