Thought I would try updating MisfitMAME to 0.136.
I didn't want to go further, as 32bit builds seem to have instability issues with the new tools. Also I don't know much about C++. So I thought I'd try the last of the C builds.
However, it seems the core has issues of its own. One game causes a divide by zero error, where in 127 it works. Another game needed to be added to a new internal list (bodgy!), and after that it freezes the emulator solid. CPS1 is a disaster area, the EEPROMS don't save, and all of the sf2 hacks have severe problems. The LED level display in pacman, and monaco had to be removed because the core routines no longer exist. Controls in the Williams games seem haywire. Plus lots of other problems.
Due to this, I may just stay with 0.127, as it is perfectly stable.