Thanks for the info from everyone. Very useful.
Any other filaments that work well with the Mega? How about nylon/ABS? Have some projects that need extra durability.
One final question (a bit off topic). Where to find a parts list for nozzle types, extruders, PTFE tube etc? Seems to be a lot of variety out there and styles but not sure what the Mega uses. Can't find anything on that anywhere.