Okay then spend 3-5 minutes.
This takes me just under 5 minutes without 20 Survival. Should take around 3 minutes with it.
There are a couple other locations almost as good as this one, so you don’t have to wait for respawns if you need more bark.
Bark really is a non-issue. The guide shows an excellent way to get bark, but I ‘never’ used this for bark myself. Just for testing purposes - verifying information I read in other bark threads and nailing down the numbers.
I always got way more bark than I ever needed just from clearing large NPC settlements like New Asagarth, and I don’t even go there for bark, I go for steel and end up with excessive amounts of bark, crystals, glass, etc.