You could solder in a 25MHz 030 and just reset your jumpers to 25 MHz ;-)
I recall the MKII having a rather lot more jumpers involved than the MKIII, but maybe that was the MK1, which had all sorts of jumpers for the memory SIMM size etc. Probably to make up for various timing issues with the motherboards it could be plugged into.
As an aside, I'm trying to learn Italian from a set of CDs called 'Learn In Your Car' and I'm only on the second disc, telling time. So, trying to read all the Italian passages here is quite informative. Io non capisco so far ;-) But I'm working on it. Thanks for the Italian!
