Re: Mercury certification
Merc Master test consists of the Certified open-book exam and you have to pass that with a 90 or better. Then there are 3 or 4 hands-on bench tests. Finally there is a closed-book exam that covers just about anything to present. I think it's a minimum score of 80 on that.
You need 60 credits minimum (not sure how they're modifying that with credits discontinued). That's the basic course plus a bunch of electives. There is also a minimum term of certification required, a fully tooled shop, and an OK from the regional factory tech rep.
Only a small percentage pass, and without many years of prior Merc-specific experience, there is little hope.
I'd say the worst part is that the exams are written by education experts, not Merc product experts. What they ask may not be what techs have actually ever seen. It's like a Merc service publication trivia exam. When it's open-book, all you have to know is how to use the manuals. When it's closed, you have to know it. Merc and MerCruiser Masters are separate. If you want both, you have to pass both.