any one sleeved a shotgun using the teague method?

I have a Remington 1889 double barrel in 10 ga.
that has very iffy barrels.
and well chances of finding a usable used set is slim and none.

so the options are make a new set,
do the traditional sleeve job where you chop the barrels off
about 4 inch ahead of the breach, bore it out and turn new barrels from blanks
and keep the original 10 ga. bore when done.

or the Teague method where you go down to a smaller bore
basically you turn a 12ga blank down and glue it inside the old too thin
barrel.

not really worried about collector value.

and sure it would probably be cheaper if one figures my time to
buy one with better barrels.
it's a cowboy gun to shoot blackpowder, because it's fun to make smoke and belch flames.