The "warping" has gone?

(I know, another thread on warped GTA discs, sorry!)

I recently noticed the (3rd) set of discs on my 156 GTA had warped, with a terrible wobbling of the steering wheel as soon as the brakes were applied. I wasnt too bothered, thought now I might get the upgrade. However, this now seems to have either disappeared altogether, or comes now and again? I dont understand it? Other than thinking they have "warped" again on the other side, thus making them flatter? I cant think of an explanation. Any ideas?

PR....

I have had a few cars with discs that warped after/during heavy braking. Then trundling along for ten minutes allowing the discs to cool down, everything went back to normal. Untill the next time I gave the brakes a good thrashing

-- Hoygs

Thanks for that, they appear to do it only at speeds over 70mph So Ive booked it in for next thurs for them to "inspect" them, where they will no doubt tell me it needs new ones, at which time Im going to demand something is done about it ie new spec discs/calipers! I`ll let you all know how I get on