Jet force gemini loads fine with setting CIC type in menu in my case.
The problem is that if I use a cart with a CIC that doesn't match, the game will show the protection code limitations (no shooting and no running). Of course it doesn't save either (which is already known), but it does load with boot emulation for me.
Going back to body harvest again, I think you may have missed it, or not paid attention, but one of the first things I said is that, when I first tried (I don't remember wether I was using core 1.0 or had already updated to 1.1 at that time, but I think it was 1.1), body harvest (U) loaded AND SAVED fine. heck, I could even backup the save and use it on project 64, and my game was there. It's now that it isn't working anymore, which makes this even more strange.