Well, I went out tonight for a drive and did some serious to-the-limit driving round some quiet lanes (keeping to the NSL of course), for about 15-20 minutes (this will usually heat them up sufficiently if breaking for bends etc.). And mine were when I pulled over, not too hot, although they had been well used. I would suggest yours is binding somewhere, BTW is it all disc heating or just one??? If it's just one (spit on them and see if it hisses), then it is binding, if all 4 possibly a
VSA problem.
Tom