i do recommend that all the snubby users run one in a competition. Claude does that successfully. It is really a good evaluation of usage. Now you do have to hang about six speed loaders on your belt but that's OK. Try to focus on good double taps. Also, IMHO, ditch planning reloads - that's gamer and not relevant for snubby usage. Shoot till empty and reload. IDPA is more bug friendly than USPSA. Before I left TX, I shot an IDPA match with two guns, my 642 and 632. My goal was to hit the targets wells, reload without fumbles. It was fun and impressed some of the fancy pants gun users (LOL).
When I shot the 642 in USPSA here - our carry gun mini match - folks said - OH, you should modify the gun for speed loaders, blah, blah. Since when I carried it, it was loaded and a couple of speed strips, I said I would pass. I shot it for practice as compared to a 'win'.
You hand might ache a bit depending on loads. I shot a lot of WWB 130 gr FMJ and that was a bit of a sore hand. I did also shoot some cream puff reloads that I got but decided to stick with reality most of the time. I did shoot SW 32 Long though mixed with full bore 327 mags or 32 HR mags.