Simple suggestion is to copy this upgrade for leveling and add it as a character upgrade for composing at same cost.
2 FSP for 1% xp to the next level. Can not go above max level.
Now that there are people maxed out in composing there is no mystery of what buffs are coming or what levels they will be.
Also allows guilds big or small to have the option to compete with anyone if they choose to spend the fsp.
Power leveling is a huge source of income for FS, why not make it an option for composing?