Same for me too. Kept losing rear wheels on the Durango.
As Shaun, I've run the Durango for over a year and by the end of last year decided that I just couldn't get on with its aggressive style, I even bought a new car just incase it was something wrong with the car. It is a fantastic car but i think its difficult to tame unless you have a little talent....which i don't have lol.
I switched to the CAT2, and I ran it for the first time at worksop the other week, and imediately ended up 2 finals higher!! It is more forgivable, but also found that I could push the CAT so much harder without losing control. I could choose lines more accurately and passing other cars was so much easier.....as this time round I was actually passing cars, and not letting them through.
maybe the big bores on the durango will calm it down a little, who knows, but we will have to wait until we go outdoors to see.