Since this is a matter of personal taste- to each his own. For me, I think it is a BAD idea. I would turn the spur into a rowel. You may need to have a weldor help on this. The round rowel won't hang up on your clothes but you can still cock the hammer and shoot it single action if you wish- the best of both worlds.
In his book, "No Second Place Winner", Jordan seemed to consider the spur somewhat of a rowel without any addition. He cautioned that when fast drawing, the spur was a source of injury to the shooter's hand.