Since Patch 2.3.0 the shapeshift option in FuBar_ToFu is no longer needed. You will automatically change form if you talk to a flight master.
from the 2.3.0 Patch Notes:
If you are in a shapeshift form and try to use an ability that may only be used in caster form, you will leave the form and use that ability. This means that you can shift from one form to another in one action. If you don't have mana to shift form, you will get an error message and remain in your current form. This can be disabled with /console autoUnshift 0