Re: The real mystery is how Paula discovered the clock work around ...
Or the option I tried back in the day: find a local shop that can do surface-mount soldering to replace the buggy Buster chip with a better one. Sadly, what I actually found was a local shop who only CLAIMED they knew how to surface-mount. Brought the machine (Amiga 4000 desktop) back home, and it almost booted once, but never got any farther than that. A friend of mine, far better with a soldering iron than I am, looked at it for all of a second and said "that solder job looks like crap. I could have done better, and I don't even know what I'm doing!" A few unsuccessful negotiations with the store about defending their work later, and I stopped payment on the check. Immediately after that, of course, they were actually able to get ahold of the people who were unavailable when I walked into the shop, accused me of civil and criminal fraud, sent the job to a collection agency, sent several letters threatening small claims or even criminal court (but only threatening rather than acting, as I made it clear I was perfectly willing to defend my conduct before a judge and they never filed anything), and that "resolution pending" stayed on my credit report for the next seven years. I shipped the machine out to another business out-of-state that I had been avoiding because of a few bad reviews, but it came back from them fully functional for less cost than what I had briefly paid the local shop.
I learned many years later that the technician, who I never actually met, was of the opinion that this was beyond his skill and tools and he wasn't comfortable even attempting a surface-mount job with a soldering iron (done properly, it's done with a hot air gun) but the boss, who was the source of most of the threats and arguments against me, ordered him to do it anyway.