That is so interesting... I just re-learned to touch type with my ErgoDox and have 0 problems with Q and P. Doesn't feel like a stretch at all, and ring finger feels super weird for those 2 letters. Numbers, equal, parens, and B & Y were the big struggles. I'm mostly better now (after about 3 weeks), but now accidental enter-instead-of-space is a real thing.
Oh, and I'm still not back to where I should be for by-word-deletion and such with the standard mac shortcuts (option-delete, option-shift-arrow, etc). Have toyed around with the idea of vim bindings, but I'm learning the standard config first. Best of luck... maybe try rotating the keyboard hands a few degrees closer to parallel to see if that helps?