Sure is, can't see that changing anytime soon, it's a great combo for anything you want to do. It's currently having a makeover with a wide body kit and respray in Audi Nardo Grey. It's nearly complete, looks good, but most importantly I will now be able to run my GTR wheels/tyres (wider) under her.
Yes, Brett (from Full Race) has told me several times there's no real advantage in going 9180 over my twins.I did try the larger rears (0.8) on the twins last year chasing more power but gained bugger all whilst losing easily 400-500rpm in response.