I have that pristine ‘75 Colt Trooper Mk III .357 Mag 6”, and wanted to lighten the trigger, but was advised not to, when I carried it in a shoulder holster.
Buying a modified piece could be trouble from an anti-2A DA and jury, if they wanted to cause problems.
I pulled a second shot from recoil, I said no thanks.
Have you heard that Obama’s EO that banned Russian guns also banned ammo imports?
That is what My FFL says