Using Wiz n Liz as a base as its side-scrolling so really seemed to suffer from frame-rate issues.

Interesting fact, auto frame skip performs WORSE with Cyclone than UAE. Not so noticeable at stock speed but very noticeable when over-clocked. Both cores happily run Wiz n Liz without noticeable glitches with frame skip 0, Cyclone however pegged the frame-rate down as low as 10fps at some points, UAE still dropped in low twenties, if auto was turned on.

Most importantly though, its the fact it dances between 17-50fps that means even when it works, it feels worse than just setting a frame skip of 1 and having a near-constant 25fps, on Cyclone or UAE versions. I think I already said in the FAQ to try manually setting the frame skip as I do not think think auto can ever provide a satisfactory result, its the nature of a frame rate that fluctuates.

So far I'm not sure I can say anything conclusive except, Mr Nutz crashes on Cyclone.

I certainly do not think its worth spending any time trying to improve auto frame skip when it will always suck compared to a stable frame-rate anyway.