
I've updated the skill build scheme, making some minor adjustments.
Implementing the "Mole" scheme didn't work out (many skills don't fit well in it), but even without it, the build's stability should remain at a very high level. Since no perk has more than 2 child perks, choosing the necessary base perk as the first pick guarantees that any perk in that branch can be acquired, and this can be done with a 67% chance per attempt.