There's no doubt that a top 'smith with good equipment can out do a shade tree Bubba. But there's a place for "quick and dirty" Taylor throating. If I recall correctly, wasn't the first one done by your dad by swaging the throat in? At least that's what my memory box seems to yield. I know that almost 20 years ago I did my first one with a Brownell's sourced reamer. And I've done two more since then. Every Colombian Llama I've handled has had a misalignment between cylinder throat and barrel. There's probably better ways of improving these revolvers, but I've found that using that Brownell's sourced reamer I could get rid of the step between the chamber and barrel, allowing the RNL ammo we're forced to use here to slide into the throat with no gouging and leading. Accuracy also improves as the bullet is no longer scraping one side off as it enters the barrel. BUT, Larry's right - the best way is to remove the barrel and do it in a lathe. If you've got the means of doing so.