Does your single action have a transfer bar or a floating firing pin?Try this its interesting.....
Take your 45 single action, make sure its empty, put in crossdraw. Draw the 45, kinda fast like a shootout. Leave trigger finger out of trigger guard and thumb on hammer cocking it as you draw. Notice... You only have three fingers (middle, ring and little), supporting the pistol. I dropped mine twice before I put my trigger in the trigger guard for support.
Also dropped the hammer a couple of times by bumping the trigger while bringing my thumb back to grip.
PS.. I never pulled the trigger but I did "fire" the pistol. The difference.. I made sure mine was empty as anyone handling a real gun has the individual responsibility to do.
How many clicks do you hear when cocking it?