Yes most of us like the smaller K frame grip of the K or L frame guns. Also in speed-loaders to my knowledge they only carry six rounds.
Best to attend some PPC shooting to practicing & note what they use. Like my original holster was a normal draw up & out with 2.5" Tex Shoemaker Sam Browne though later on again from Tex Shoemaker was a push down & out to bring the gun into action.
I went through a lot of speed-loaders to end up with Safairland II though I think a lot were shifting over to the spring loaded Safairland III. I have had DADE, HKS & a few other makes though liked the Safairland but times have changed.
What I like at an indoor range with B-34 humanoid targets, rather then the large B-27 for 50 yds, I could set it up to three different distances from the target to shoot from along with kneel to other stances & at the end we would have 2 out of 50 rnds left over. So empty gun in the holster & the two rounds left over to reload & shoot at the "little guy" in the upper left from a closer position. So much can be done to make the shooting fun & a challenge.
Yes our loads were light, but not all had HBWC or even double-end WC, but so much easier to obtain 150 gr SWC & still shoot well & in several cases I used 162 Gr SWC.
Some chaps would load light loads in their 45ACP semi-autos & still shoot as the challenge was there & especially when shooting from 50 yds which helped them as basically IPSC shooters.
Those with 2" snubbies shot from closer distance & no more the 25 yds. So there is a lot to PPC shooting.
Lastly you might be able to contact Canadian Police Combat Assoc., on the net. Though last address I had was way back in ''94 for thier Rule Book being CPCA, Box 1397, Regina Sask, S4P 3C2. Obviously been some yrs since I belonged or shot PPC.