The last couple of weeks I have been practicing weak-hand loading for High Plains, 10 to 40 minutes per day. The first week kind of sucked. There was a lot of improvement in speed, but I just went from about really slow to kind of slow. I was putting four shells in the gun in eight seconds, sometimes dropping one or two. Now I'm getting eight in the gun in eight seconds on a good run, and a little bit faster than that on two occasions, but I'm not sure how much faster since I'm using par time.
What helped most was watching one of Jesse's videos from Feb. 2011, , and then the "World's fastest" thing where he talks about indexing on the caddie with the ring finger. This also helped me fix my index depth-wise so that I'm picking up four shells almost every time, instead of three. The four-shell caddie really seems like a good easy fix for that kind of thing, but I'm not changing my gear until next year at the earliest.
The unmodified loading port has been irritating me, but I'm going to wait until after the match to open it up, since that would eat into my weak-hand practice.
In a theoretical way, it seems a bit shitty to be working on this when the load-two systems are making a strong showing, functionally, but there's no point in limiting myself by not learning to weak-hand load quickly, as it's a very good technique.