There's something that's gone wrong, terribly wrong at the molecular-genetic level, with my hand vis-a-vis Ruger Super Blackhawks, The last time I shot one, my pinkie somehow wrapped itself around and/or under that little pixie grip such that it was between my palm and the backstrap.
Hilarity ensued as the first round numbed the offending digit, then pounded it sufficiently with the next 24 rounds that what felt like a golf-ball sized lump raised itself and didn't go away for a week.
OTOH, I find a ported 629 Trail Boss to be very comfy (much to my chagrin as I have advertised my hate of porting far and wide - this results in my eating some crow - mmmm, tastes like chicken).
A 6" Anaconda is pretty comfy too.
Although one can fit a DA type grip to a SBH, it suffers aesthetically from the treatment.
Just make sure you try out whatever you're considering before plunking down the cash - some very few of us can't deal with even moderately stout loads out of a plow handled pixie grip - it's probably the single biggest reason I've never considered a Freedom Arms in any sort of artillery round.
