Success! The pie is fantastic, the crust is flaky and light, and I think I need to get a set of pie weights, because pre-baking the crust with white beans to weigh is down only kind of worked.
I followed this recipe -- New Twice Baked Sour Cherry Pie -- though without the brandy, and it is a fantastically tasty thing. The cherries are tart and tasty, as they are the same kind of tart cherries that are made into maraschino, but without the over-sweetness from the preservation, the flavor really comes through.
I used the leaf lard I rendered myself and it worked wonderfully, even though I don't have a food processor and had to cut all the fat -- the lard and the butter -- into the crust by hand. Also, I added a bit more instant tapioca than the recipe calls for, but I really dislike runny pies. This is not a runny pie; it is a fantastic pie!