I do the " apply evenly while downshifting" if at all possible.
To much rear + clutch in = slide. Better to have the engine pulling the rear along IMO.
Ive found the easiest solution for rev matching is to hold the throttle about 5% open when downshifting.( EG: roll off, hold about 5%, clutch in and downshift while holding the 5% ) The down shift is then nice and smooth. Play with it a little till you find the butter zone. If you've got too much throttle it will jerk you a bit as noted earlier in the thread. Of course, i wouldn't worry about if it you are "oh shit" stopping.
