Shimming 39mm Fork Bushings

[GLFLSTCI02]

Has anyone out there shimmed the play out of their fork lowers? I replaced the bushings in my forks this winter with new ones and although the same brand as the previous ones these have much more play, to the point where I have a clunk over bumps and it actually chattered dragging the brake going slow in traffic downhill to a stop sign.
I have a set of 12" feeler gauges 1/2" wide on the way for shim stock along with new bushings and seals so there is no question whether or not I am going to give it a try, but I would like to hear from anyone who has actually done it. I am particularly interested in what approach they took on the top (outside) bushing.
Anyone have any experience with this that could give me a few pointers?

TIA,
Gene