I found the 50 hr service to be fairly simple and the Owners Manual covered it adequately. Pull the plugs/filters, drain fluids, replace plugs/filters, fill with new fluids, squirt some grease how hard can it be? Oh yeah, dealing with 7+ gallons of used Hydro fluid and finding all those elusive grease zerks! I took my time with it last fall, getting to know the machine and all and had a pretty good time with it.
I wouldn't be alarmed at the metal flakes on the magnets, to my knowledge it completly normal on the break-in service. Now if you see same on subsequent services I'd be more concerned.
Does anyone actually have the full shop manual? Is it worth having?