I've been using WoodR4 1.12, with a pre-patched (for the exp problem, at least) that I found on /tr/. It was working great, I went from the very beginning and stopped after beating the first gym and rescued the Munna, headed out the west exit of the city, saved the game, and decided to play something else. I got like two hours of gameplay (slow, I know) problem-free.
...but then I decided to boot up the game again and play some more, and I get frozen almost immediately after continuing my save game...is there a fix for this yet?