My own experience is that the Harrell's is of course consistent in volume by click.
My experience is also that however ideal it might be for small rifle cartridges as touted that is .218 Bee and Hornet as one approaches the bottom end - listed as 2 grains - of a flake powder, in my case Red Dot it gets a little flakey

. Maybe 231 would measure better? I don't know that.
I think you might be disappointed
at the price for loading .32 S&W long or even jumping to 3.5 Bullseye for a #130 in .45 ACP or any such much below half way on the powder measure nominal range. Maybe not. Mount it super solid and give it a try if you can afford to move it on down the road if not satisfied.
If you already have something that works at all I'd sure practice and refine technique and dump powder into a scale pan on an electronic scale for quick settling on a value. That is at the extreme low end I think technique will matter more than money.
I also have Hornady and RCBS with rifle and pistol drums and micrometer screw adjustment along with a Quick Measure for large charges of stick powders. I haven't found any platonic ideal and every one has been great for something.
Then again I can't really say that any measure I've tried has been as good as I hoped in that very small range and down. I'm inclined to use a Little Dandy with a roll of quarters, or a specially made weight assembly, on top of the powder and a baffle underneath in that very low range and dump every charge into a scale pan and throw some back and dump again and still I think be faster then just trickling.