Out of curiosity what is so different with my approach? Or different with my logic? Just asking not trying to start another heated debate. If there is potentially a better way to do something than I am already doing I want to know
This is why I stay out of cut paste, soil, and feeding discussions; what works for me may or not be best for someone else. Here are the differences between your statement and my approach:
1. Calluses can roll over or under cut pastes...it doesn't matter which to me, so long as they roll. How they roll has much more to do with the cut than the paste.
2. Looking ugly while cuts heal isn't a problem for me, so long as they're healing. Once they heal, no cut paste or putty will be visible, so it really doesn't matter. In fact, I actually appreciate a well-executed cut, and in particular, the tree's response to it.
3. You stated paste would be good to create an artificial surface for the callus to roll over, which I completely agree with, and this is what I do.
4. Then you stated that use putty on large wounds and paste on small ones. I do the opposite, because water still gets under putty, the wood will rot, and then callusing slows/stops. This is not good for large wounds. Anything that won't heal in 2-3 seasons would be considered large.
5. What I didn't share, for purposes of simplification, is that I actually use both types on large wounds: paste to create that artificial surface, then a ring of putty over the cambium. Here is a shot of my J. Beech, notoriously slow to close wounds. I sawed this off 6 years ago, and it's about 30% healed. Each year, I reopen the cambium ring and apply putty to keep it from getting lazy. Here is a sequence from '09, 3 years after it was cut back.
- smooth out the deadwood, reopen the cambium
- Place ring of putty over deadwood to keep it from drying
- Place paste on the deadwood to keep it from rotting
Then, last year, I repeated the process, but also filled it with epoxy putty so it would roll over that, which it has begun to do. Here is a shot of the same wound today:

Again, if your method works for you, great. I'm just sharing what works for me, and it's interesting to see to distinctively different approaches.