Howdy Joey,
My Craftsman uses both also, but I found it more trouble than it was worth to keep using the allen wrench to change the blades. However, the saw was great with the pin end blades and I got quick at changing them for the scroll work. Like the other fellers said, you are limited in detail scroll work by the size hole you have to drill, but I found it to be a great learning saw and lots of fun. I usually got my pin end blades from Lowes or Home Depot, but the other fellers are right about other brands (Olson, Flying Dutchman, etc) being better quality. I have upgraded about 2 weeks ago, but still have my Craftsman for backup for now. Anyway, as far as the manual, go to the sears website to parts direct link and they have manuals, as well as breakdown drawings for parts, etc. Helped me out a lot when I needed it. Had to replace the lower arm when I ignored an increasing rattle. Small bushing wore out and wallowed out the hole it was in. My bad !! lol No problem with the parts, got them in a week and back in operation.
Anyway, good luck with the saw and have fun. I am new to this site and this is actually my first reply to anyone. Hope I helped.
Later,
Billie Ray