I didn't say it was a "good" idea. I said he'd be better off doing that instead of messing with his 1911. Personally I have no problem carrying my Colt Defender cocked and locked.
He would not be better off, carrying at half cock defeats safeties on the 1911
All 1911 users should "test" the safety from time to time. With the gun empty, put it on safe, pull the trigger HARD and take it off safe. If the hammer drops, you have not done things quite right to get the nice two pound pull. Ask me how I know. Jack.
A poorly fitted thumb safety is a poorly fitting safety no matter what the trigger weight.