Hiya,
Yep you have the latest mask with that baby, don't worry 
Like I said above, it's not just the chip, it's also down to other things like the chipset on the card and more importantly the memory on the board.
Your board has a very rare 50ns SIM so it *should* be able to handle 100Mhz.
I recently upgraded my Blizzard from 75mhz to 80Mhz but went through 3 different SIM's to get it to go that fast (Blizzard's aren't so happy to overclock as Apollo's because of the way they talk to FASTRAM).
Getting excited now, thanks Nova :-) Will be interesting to see, would be good for 130mips?
Was thinking of adding a second SIMM socket now too, don't think I'll be able to close the case at the moment with all the stuff I've put in there :-/
So I would need to track down another 50ns SIMM... hmmm.
Will be having another go this weekend to fit it all in the case, as I'd prefer that :-)
Will make sure to post some video's too, rebuilt my workbench (again) and have it on a faster 8GB CFCard.
On PFS3 060 the 1200 boots really fast. Only downside I've seen with PFS3 is copying a large amount of files, even under winuae I get it were it stalls or get buffer i/o errors.
Anyway off topic now :-)