Wheel adapter vs. spacer for front runner?

I plan to install 15" x 3.5" Weld ProStar front runners using 1" thick wheel adapters (with lugs) in order to clear upgraded 13" brakes / Bullitt calipers, in lieu of using 1" thick wheel spacers and replacing the stock studs with longer ones. Anyone know or hear of issues with doing this? I still intend to use my regular wheels for the street.

Also, if anyone is using a similar setup, do your wheels stick out of the fender well?

Any info would be appreciated!

Forgot to mention above, I realize that I need to remove the adapter when re-installing my regular wheels.

Well, a little more information to add that I found on another forum:

The bolt-on spacer/adapter (hubcentric type) needs to be thicker than using just a regular spacer with longer lugs, in order to extend past the stock lugs. Someone indicated their lug projection was 1.375" or 35 mm, so that should be the minimum thickness without having to cut or grind the lug. Guess I will just have to measure mine to confirm.