2Tree, I thought the same thing but when on an actual tree its hard to justify all the time to redirect a small inner growth limb especially if it has a weak union. Leaving some temporary water sprouts in the inner canopy will keep the tree from such a sparatic and bushy spring flush, and also helps feed the tree in the hot months when the outer canopy foliage are not feeding.
It is hard to do the ideal 2/3 canopy 1/3 trunk in the real world, and as for the knub you left has a water sprout on it but has a high v atachment, I hate when I do that looks different when you are 1 foot away and then look again from the ground, especially from a bucket, esiar to "feel" for the other guys knubs and miss cuts when i am climbing hard to get all the angles from a bucket. Here we have to paint all the wounds on the oaks so I always ask my ground man "knubs and shiners?" before I move in the tree, problem is I work by myself a lot so back up I go, a lot of mature live oaks here dye back in the inner canopy and I have taken only dead wood and the tree would still look lion tailed, also I got where I wasnt so quick to yank my line outa the tree till I did a walk around too,
Paul