[A Snake]

You need to go to a true specialty tire shop that is used to dealing with aftermarket aluminum or magnesium wheels. they can spin balance and use the stick-on weights that go on the inside of the rim(where it's flat). There is no need to use the old clamp-on lead weights or have them show.

It sounds like you tire guy didn't quite know where to put the weights. Offset or no, the weights will work fine if placed correctly.

It would not hurt to have the wheels chucked up in a lathe to check the runout. There could be a difference between the mounting face (where the pins go in) and the bead surface.

Call around until you find a shop that knows what you're talking about. The weights look a little like a segmented refrigerator magnet. I think each segment is like a tenth of an ounce or thereabouts. They are meant to be broken at the segment lines and come in long strips. I'm not sure anymore, but I think they are just lead with a sticky backing.

I used this method on my magnesium Halibrand pindrive wheels and it worked just fine. No vibration at any speed. (The Halibrands like mine are what Trigo copied.)

Don't know if this helps or not, but maybe some food for thought.

Al