I run one layer of gorilla tape (high quality duct/duck tape) inside the tire for 1/8 bug and trug. Does not add hardly any weight, and pretty much prevents ballooning. Vent tire as normal, punch through after taping.

I have not seen any ill effects, tires seem to last longer and wear even. Feels a little more "precise" on high grip surfaces.

I clean inside really well beforehand, then flip tire inside out and roll it on a strip of tape. Press flat and done.

If diffs are tuned for use with balloons, may need to adjust fluid.