Just curious - what is it about the CompIIIs that make them faster?
The handle protrudes further up from the pouch, and IDPA-legal speedloader pouches must "encircle the speedloader." The handle also has a lot more surface area to get ahold of than the small knob on an HKS. Combined, they make the CompIIIs a lot easier to get out of the pouch and into position.
The rounds are less prone to wiggling-- All of my CompIIs and CompIIIs hold the rounds as they should; I have 6 or 8 HKS loaders and only one holds them as tightly as the Safariland.
The Safarilands are a one-step operation to release the rounds. The center pin triggers the release when the loader is in position. As the shooter, all you have to do is line it up. The HKS require the same alignment (which itself is more problematic with wiggly rounds) and the release is a second step you have to execute. If your hands are sweaty (here in AL, we shoot some summer outdoor matches where the temp is well into the high 90s, low 100s-- sometimes with humidity to match) then the knurling on the HKS knob doesn't always cut it (and will get worn down over time anyway).
The CompIIIs are also spring loaded. Seating the rounds is a lot more positive than drop-in loaders. Also, after your chambers get a bit cruddy (say, with reloads using cheap lead bullets and Unique) having the assist can be the difference between a simple reload and trying to close the cylinder on one (or more) rounds which aren't fully seated.
If you do a search on my user name and use "HKS" as a parameter you might find a couple of old posts where I was rabidly pro-HKS. I don't need those Safarilands everybody keeps telling me to use. My HKS work good enough for me.
Yeah. I admit it. I was wrong. No two ways about it.
I recall reading a thread in the brianenos forum describing modifications to CompIIIs to make them even faster.
I've tried a modified Comp III (AFAIK, it's basically just a removal of the collar; with the idea being your fingers will interfere with the spring less than the plastic collar). They wind up shorter. I didn't notice them being faster at the time, but IIRC that match got monsooned out. I might mod one up and try it again sometime.
BE's revolver forum is a good place. There are guys who hang out there that definitely know their way around a wheelgun. Certainly ask your questions there; you'll get good advice.
I have some CompIIs, and I suspect I ought to focus my attention on the basics for now.
Absolutely. Run what you brung. Have fun with it. Borrow gear people offer and try it out. Maybe it'll help you; maybe not. Shooting is a continual process. Try new things. Keep what works. Get rid of what doesn't.
It's impossible to start with the "best" gear until you know what works best for you.