Originally Posted by
Suraydo
Your mind arrows improve as you gain higher levels. At 3rd level, a mind arrow gains a +1 enhancement bonus on attack rolls and damage rolls, and at 7th level the bonus improves to +2. These enhancement bonuses stack with previous enhancement bonuses gained earlier for your soulknife class levels. Likewise, these enhancement bonuses also improve your soulknife base attack bonus. If your return to your soulknife class progression, these mind arrow enhancement bonuses on attack and damage are cumulative bonuses on top of any new enhancement bonuses gained, and they benefit both your mind blade and mind arrows. That's why I said RAI, and not RAW. It's very vague and confusing and I asked the DM about it and he said roll with it.
There was a houserule where anyone can take weapon specialization mainly because nobody ever plays a fighter and it never sees use otherwise, that's all.
Deepwood Sniper has "Keen Arrows" at level 1 btw, not level 6. Keen edge I think is... keen +1 in essence. Or maybe that's the one that expands the crit multiplier. Probably in the MIC.