Well spent all weekend, tweaking FAME/C and JIT.

Result FAME is working as it should and perfect.
JIT is now fully working (bare in mind this is a full industrial style JIT, not a DYNAREC). Just needs tweaking to nail all speed issues (if I ever can, on this 333MHz).
However important thing is, it works fine without crashing regardless of JIT options set (used to crash randomly depending on options).

All Yesterday, spent time profiling paula on ME. reduced alot of wasted time via irq polls etc etc.
Still working on squeezing every last drop out of it, .