It crashed at Jiggywiggy's temple when loading the third jigsaw puzzle (second in a row). No cheats. This crash is starting to look like a fluke though. I went through Glitter Gulch Mine and it was rock stable, even in the FPS segment. I'm continuing my little investigation of these settings through Witchyworld, If it crashes again I will have a savestate close to it. I personally think that there is a very slight chance of this crash every time you enter/exit and area and that PJ64 handles the transition fine about 95% of the time. If I encounter another crash, you will certainly be the first to know.
Oh yeah, and I'm using ForceWare version 84.37, which is known for its speed and stability.