Hi,when I bought my 313 from a garage in Norwich, I noticed that there was a bit of a difference in left/right handling,thought it was me at first.I decided the the Avon/Dunlop mix must have been the cause so went to my local ATS in Ely,once the Avon was taken off I was horrified to see the heat that the inner wall had been subjected too and also that a tube patch had been applied to a puncture!! Needless to say,the garage knew absolutely nothing about the repair,which could be possible I suppose.