Yes i used to be a pruning sealer and wax guy myself. Like others i learned the hard way years ago to prune and graft differently. Someone here might enjoy this grafting thread Grafting large Callery and Betulifolia pear rootstocks .consider modeling clay though still oil based it does not tend to seep oil like sealers or wax. That seeping causes grafting failures and caused issues for people here. Years ago i used and swore by sealers and waxes. The difference is it is hotter than it has ever been. In the cold weather these things work nicely. It is not cold anymore.
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