Where have you had them done and cost? There are a few options I am going to check on, Norms tire in Little Canada, ($$$) Hoosier tire North in Rogers, Mn, Hi Tech Motorsports in Ramsey, Mn, and Schmidt oil in Chisago city, Mn. I bought Goodyear 2078 15x15x15 through Summit.

I had Fisk Tire in North Branch do some and A-1 in Stacy as well.

Schmitty and Norms shouldn't have a problem either. Just whoever is closer.

Make sure that the put the stick on weights in the correct place so they don't hit the calipers.

Had them done at Norms Tire, Roseville Mn for $53 to change two slicks, balanced them myself.

Greg.. how much weight did it take.. I assume these are bias ply

Mike, the first one took over 16 ounces. Second one got by on 4. These are stick on weights on the inside of the rim, so they are only about six or seven inches from the center of the rim. Tires are 40.6 lbs each (tubeless), so I guess it isn't that much weight, considering.

I had 1 slick that took 19 ozs some years back... that was with
a tube.. but thats the highest I've gone... and that was after
trying to move the slick around a couple of times.. like you I
do my own and I use the stick on weights then cover them with
duct tape