Thanks for all the comments Blokes. Hmmm...
Christov make some good points about the Bridgy's, but then I would have to buy 4 and pay around $300 more than the Conti's (4 for 3 deal). As long as I get say 26,000 out of the Conti's I'm doing ok. I think that should be achievable, my tyres seem to last as I am balanced in the way I drive, e.g. not pushing to the point of understeer which ruins the outer edge of the fronts. I get them Ex GST too so not a lot of money at risk here. I love the Bridgy's. Great tyre. I reckon if I drove with a little less right foot off the mark and around some bends the rears may have lasted as long as the front's to say 42-45,000k's. They handle well, brake well and wear well. A+. But as the Conti's CS5P's come out on the VF HSV's I reckon I'll give them a go, a little grippier and a bit quieter for the sake of longevity may be a worthwhile tradeoff?