I'm fairly certain there's a bug in the archery update. I can get a bundle of arrows blessed by clerics or Volners, but pure potions don't work at all on them. This test was done with a brand new set of standard arrows just bought from the Mist Harbor fletcher. The potion also just purchased from the Mist Harbor cleric shop back room.

>glance
You glance down to see a pure potion in your right hand and a bundle of wooden arrows in your left hand.

>look at wood arrows
You quickly glance through a bundle of wooden arrows and notice nothing special about them.

Each individual projectile will be "a wooden arrow".

>pour pot on my arrows
You pour the potion on a bundle of wooden arrows, but nothing seems to happen.

The potion works perfectly fine on other weapon types, including bows. There are a lot of hunting grounds where undead are mixed in with living creatures, and I believe the design intent was to allow archers to swap between blessed and mundane arrows on the fly.

Really hoping someone can look into this and fix it, because tracking down clerics for a bless in remote areas is a constant challenge.