To answer the OP's question, when the rear end kicks out, do not chop the throttle. Slowly roll off the throttle as the rear end comes back in line.
If you leave too much throttle, the rear will wash out and you'll low side. Chop the throttle too quickly and it will snap back in line and high side you.
Practice sliding a dirtbike and you'll see what I mean... Though, it's not really something you can practice for on the street.
Rocker59 (aka guzzimike), Aux Arcs
Moto Guzzi: LeMans 1000 CI, Sport 1100, V11 LeMans Nero Corsa
IBA #24873, MGNOC #21347
“Just keep playing, no matter how weird it gets.”