I didn't consider that.... so things would get more complicated. Because Woodcutter would then lead to an OR condition of 2nd or 3rd thief, which have their chances of Wisdom.
Woodcutter to 2nd = 1/6, then to Wisdom from 2nd = 1/4, so 1/24
Woodcutter to 3rd = 1/6, then to Wisdom from 3rd = 1/2 = 1/12
or
Woodcutter to either 2nd or 3rd = (1/6)+(1/6) = (2/6 or 1/3)
So then Wisdom as a result from Woodcutter should be (1/3)*(1/2) = 1/6
That is indeed better.
But it is still very hard to find 3 Wisdom adventures in a week as well as play them all. So I think that quest in particular is unreasonable. That's where my point was going.