Funny that this thread is going on now. I was off today and on a ride. Just for the heck of it, I, out of the blue, decided to see how well the slipper clutch worked. As per my dirt bike days, just kicked the gears down, sans clutch, into 1st at over 20MPH. No jerking, no hopping, no tire noise. Just a drop into the next lower gear with no argument from the bike.
Had a Duke 690 also with slipper, and no matter how it was abused, the rear tire and engine never made me regret my actions. Man, I miss that Duke. A Hooligan with a CAPITAL H, for sure. tp