What kind of stuff can mages at the lower tiers do? Does working tire the mage out or could someone hypothetically cast nonstop? Are there schematics that eliminate the need for sleeping and/or eating? Would it be more efficient in some cases to have low tier mages maintain some form of enhancement schematics on multiple non-magi around them? What kind of businesses hire mages outside the military and what applications do they use them in? I love reading the world building you write.