BTW, I sort of took us off the topic of aran's original post. I can't say I have any experience with straight-line spins.

I can't imagine why such a thing would happen unless there was a hard shift in the front-back balance (from braking or accelerating) or if the road surface was forcing your weight to one side. Also, if the back wheels were spinning, you might get lateral movement.

In other words, I have no clue.

 

You can experience a straight line spin in a RWD any time that you lose traction in the rear wheels. This can happen under hard accelleration, while downshifting and using the engine for braking, or even from a change in the driving surface, i.e. more water and slight hydroplaning, oil on the road surface or a number of other factors. the key element is reacting properly when it does happen in order to stop the spin. This car undergoes a large power increase when you hit VTEC, so it's really easy to get the back end loose in poor traction conditions on a straight line. My 72 Corvette LT1 would turn nearly sidewase when shifting from 1st to 2nd. This was due to the power output and the really skinny tires that we used to drive on. Regardless, I still say, practice and learn the quirks of this car so that you are redy to deal with them.