Glad your ok Shep.
Must be the time of year, i had a similar experiance yesterday afternoon on the slip road onto the M90 at bridge of earn. Pulled onto slip road in 2nd and gave it a bit of gas,now the type r is a bit lairy in the wet but this was different, back end came right round instantly and sent me nose first over the kerb which was luckily an angled one and not flat faced.
It was deep gravel for drainage on the other side luckily and that stopped me hitting the banking, got away very lightly with a few scratches on the alloy but could have been a lot worse.
Kwik Fit put my new wheels and tyres on,on friday afternoon and i was on my way back from Falkland after getting my geometry set-up when this happened. Car wasnt feeling right so checked tyre pressures, 36 psi all round!! was like driving on ice its no wonder the back stepped out so quick! will be having words with the fitter tomorrow!
Col.