For balance purpose i would suggest disabling Supremium Armor set flight bonus. It is very easily obtainable compared to other equivalent flight option. I personnally disabled it in my server.
I would suggest balancing Mystical Agriculture more in every way, its just too easy way to obtain 95% of resources currently and can be automated easily with low energy usage for infinite amounts...
For balance purpose i would suggest disabling Supremium Armor set flight bonus. It is very easily obtainable compared to other equivalent flight option. I personnally disabled it in my server.