Ollie nice one son..
Personally i would have gone Toyo or similar tyre, they makes the wheel look larger toghther with slamming it!!
I'll be at BBT saturday to with my Calipers!! Not fitting them, just showing maz the internals and etc for references...
EDIT:
Again a perfect example of what i have been trying to show people dark wheels look smaller than they are.. you have to go one inch bigger to get the look of what it really is!!
Only way you can pass this is to have a shiney edge, but not a dish rim, as they has the same effect as dark wheels, it makes the wheel look one inch smaller... hence i had to got 19" with dark and rimmed wheels.. and people still think they are 18"s...