What are you looking for? Levelling or making money? Unless you sell a record amount of unstrung maple bows to a general store, your only option to make money out of fletching maples would be to try to sell them on the forums. (Have lots of fun with that.)
I cut 60k maples in a week, 15 hours each day to gain 80-90. Yews would have been easier, and obviously quicker, but i couldn't afford it.