You should prune with me. Did a few of those whammies at home.
Sealit back together right away. I do grafting tape then sticky side out elelctrical tape over it with some grafting tape exposed on the very top / bottom.
I would not save that right side. Leave a bud or two, then keep that new branch growth in chec for this upcoming year. Trim it back so it doesn't get bigger. Just want to heal that half, then prune away next season.
I wonder if we should avoid doing limb spreading until active growing season. I did that to a macoun and several galarina. I am thinking more vigorously growing varieties should be avoided spreading limbs offseason atleast. Galarina, williams pride, freedom, and maybe liberty on the list of my trees atleast. Only have saturn donut peaches at home. However, peaches do not live very long lives. So naturally they're all vigorous. I prepped the planting spot better than the average tree at my home. However, those peaches are by far the fastest growing thing thing I have.