On the other hand if the rear wheel slips on a wet road the CC is shut off instantly. The time or two it happened to me the RT immediately straightened up and I was in full control.
:agree: Altho it doesn't hafta be
just the rear wheel - a front wheel speed difference like that, maybe induced by something like you getting one front wheel hydroplaning in a deeper than expected puddle, will do exactly the same thing as well as applying and balancing any necessary braking
of the other wheels (cos TC
rarely applies the brake
on a slipping wheel, it usually
releases it if there's any braking being applied to that wheel!

) to keep it all tidy and then returning full control to you far quicker than you could otherwise even realise what was going on, let alone regain control & react in the first instance! :shocked: Most of the time the shock to you as a rider is that it's all over quicker than you can even realise what's going on, and I believe it's often
THAT which needlessly scares many! So the Nanny looked after you & maybe saved your butt, that's what she's
DESIGNED to do! :lecturef_smilie:
Back in the days of the older vacuum type or throttle lock cruise control systems, not using CC in the rain was only sensible because of the inherent delays in shutting it down & taking back full control if things went wrong; but these days, with fly-by-wire throttles and the whole suite of computer controlled traction & stability aids that respond in milli-seconds to variations in wheel speed changes et al that we so affectionately call the Nanny, if you are
judicious & reasonable with your initial speed settings and then vary that setting appropriately as/when conditions change, using CC and letting the Nanny do her thing by responding
FAAARR QUICKER than you ever could to all those changes,
many of which YOU, the operator, CAN'T EVEN DETECT (as evidenced by the original post in this thread) then IMHO, using CC judiciously in the wet can be can be a pretty handy
SAFETY AID! :lecturef_smilie:
As for the Limp Home Mode, I suspect that something else triggered that, possibly even something that the '
CC shut off' was in response to.

But whatever it was, since it was persistent enough to stop CC being reset for some time, I doubt very much that it was simply 'wet road wheel spin' related, cos whenever my CC has disengaged in the wet due to wheel spin or a slip (often that I barely even noticed!) I've been instantly able to re-assess my speed setting and pretty much immediately reset CC & proceed, safe in the knowledge that the Nanny can and will react far quicker to that sorta wheel spin &/or sliding stuff than I could even
think of winding back my throttle setting, let alone actually
DOING ANYTHING ABOUT IT! 
hyea: