The changes are shown below. I used my own flour mix and I've broken it down here so that you can make just enough for the recipe. I really, really hate having leftovers of custom mixes that I may not use again so I'm not going to do it to you.
I used lard rather than butter because of Munchkin's allergies. And because my best pie crusts in the past occurred when using animal fats. I only used the Spectrum in this recipe because I didn't have enough lard on hand. (I ended up making a double batch.)
The crust came out good if not quite as flaky as I prefer. I plan to try to fix that next time by rolling the crust, then folding it over and rolling again. If I do this a few times it should have the effect I like. And while Munchkin didn't like the pie I made with this, he did like the crust. So I'll be using this one again with another pie this week.