Thanks for the update. I think you're really onto something!
Any thoughts on lubing the cups themselves, or will you initially shoot with just the lubed base wad. I ask because with my round patches unlubed I found that the lubed base wad was not enough, and loading got difficult in a hurry due to hard fouling. I ended up with a dry .125 "nitro" card under the lubed ticking, which seemed to scrape the bore pretty good, easing the following lubed ticking.
As for lubes I use beeswax cut with olive oil to the rough consistency of chapstick. With the flat patches, I just put some in a ziploc with some lube and stuck it in the microwave for around 20 seconds.
Not a big deal to prelube the patches, and if you need to lube your cups I'm betting you can find a good lube that's easy to apply ahead of time.
Once again, keep us posted!