I heard wood chips were bad as mulch since the rob nutrients so my original plan doesn't work. So far I just let the 6" plus floor control the 'kuksa climate'. I think it helps it control he humidity better. Less cracking which is always a plus.
I honestly have never treated it before. It isn't even an axe I heavily put to use until recently. I always have tung oil on my hands when I'm carving so I'm sure it transfers to the helve all the time. It's a mixture of dust and oil I'd say. I feel like if you use axes enough you never really need to oil them. People that store their axes should obviously oil wedges and helves. I bet beeswax would make it nice and grippy tho.