Roadster Front Tire Wear

Hey folks, just ordered Avon Cobra Chromes for the Rocket front n rear. Not too many options out there. The Metz cup like nothing else, esp up front. 6 sets across 3 bikes 1 tire did not have cupping, the others as low as a 1000 miles and as high as 2500 miles.

Let's see how the Avon does. Any words of advice / peculiarities? Thanks
 
Chromes are great! If you went one size smaller on the front you’ll like it even more
 
What is the smallest front tire that would fit a Roadster wheel? I want a "skinny" on the front of my drag bike.