The tree is not random, but it's the end user.. I may hit (what it looks like to me) 2 identical shots but the way they actually fly, if you were to really breakdown via math, it would be drastically different.
We are talking about maybe 2 shots traveling 5% of the same line while looking to be identical. That's why, when someone says, I hit same shot last game and it went through, it really means nothing to computer that calculates shots based on predefined values
-wgticon