Wait, what? Spring covenants have tonnes of work to do to establish themselves. There's very little time to grind on XP in the library. There's work to be done. Summer covenants, well, you want to grind on the library, you've got to put in your work for it. Autumn, same. Winter, where's the library?
Even a covenant of magi working together, in a sink or swim atmosphere would still have issues of selfishness. Someone, somewhere is goldbricking it. And if they aren't, then there's work to be done. A brand new spring covenant with spring magi would probably only have 1 season per year of advancement in the desired area. Advancement in other areas might be allowed, if it is demonstrated to be for the benefit of the covenant.
Please. That's a lab total of 180. That's easy. YR7 started a threadon that way back in 2005.