masking

Hey, All, ok, I am in the final stages of construction of a basic Revell P-47 Razorback. I am using this one to get a better handle on painting and finishing practices before I move back to the Tamiya Me-109E and Spitfire. Now, here is my question.... just how do you all mask those wheel...

You know those EZ masks that are meant for canopy frames? I've never used them before, but recently bought a few of them for the kit's I'm working on (Tamyia's 1/48th Wildcat, Hasegawa's 1/72 Marauder and G3M Nell, since I know you're wondering). Have any of you ever used them? If so, what...