Ad aspera

Continuing the topic of Kyujutsu. It seems that for 300 experience points, you get +10% to damage. For the same amount of experience, you can get +6 to Perception, which, with the Longbow specialization, gives +6% to damage in addition to 15% evasion, 30% accuracy, 3% critical hit, +6 to checks, and +12 to Magic Might. Is that how it's supposed to be?