with prints and adjustment manual it's very time consuming but you can do alot, with service tool you can do everything very efficiently and somethings do require the tool.
I'll let others chime in but I'd think the MPH tool would be alot like needing CADI to work on a 300a or 330a, 99.9% of the time you don't need it. But I could be wrong here.
You wouldn't use cadi for 300a
