While probably not surprising and likely true of most 100 year old mechanical items, I have found they really benefit from a good cleaning and careful reassembly. I think they are the coolest thing going and a really cool way to hunt.
I have dies and loads for my guns in 25-35, 30-30 and 32-40. I have done the least with the 32-40. I am considering working up .32 loads with the leverevolution flex tips soon.