Tall central leader peach trees are only advantageous for backyard growers who don’t mind ladders, or commercial growers utilizing motorized scaffolding.
I often read a lot of excitement about this, that, or another unique/different peach pruning system, but a low open vase system is still the gold standard for peach training. It works because peaches are precocious, fill their space quickly, while maintaining production (i.e. fruit on last years wood) and don’t have viable dwarf rootstocks available for most peach growing areas.
Despite all the hoopla over new and trendy training systems, peaches will continue to be grown on an open low growing vase until there is a major paradigm shifting breakthrough.
As it appears you’ve already learned, not to trust uncles who grow several fruit trees. I’ve met dozens of customers who are fruit tree idiots when it comes to advising me how to manage fruit trees based on their experience. They tell me everything from trying to manage deer by hanging bounce sheets and Irish Spring soap to controlling insects with companion planting. All kinds of astrological fruit tree ideas.
Honestly, nowadays you are better off watching several youtube videos from trusted sources, than trusting a local with some claim to expertise. When you’ve lived a half century like me, you realize someone’s self confidence has little relation to the accuracy of their claims.
Scott posted a reference forum. In there he posted a good pruning reference of peach trees.
Look under NC Extension Peach Pruning. The vid on pruning a young peach tree is very good. While I don’t agree w/ every last detail of Mike Parker for my climate, he obviously knows his stuff, and if you follow his guidelines you won’t go wrong (except that make sure scaffolds chosen are less than 1/2 the diameter of the trunk, which he doesn’t mention).
As a working example, it somewhat frustrates me that on a similar question on a current topic, lots of folks are suggesting a new grower keep a large poorly angled scaffold in order to gain a year on fruit. It violates the vid above, as well as every rule I’ve read and observed, but I feel like I’m being drowned out by the passion of others, lol. Train your Fantasia nect to a low open center tree with care being taken to make sure scaffolds are no more than 1/2 the size of the trunk and at no more than a 45 degree angle to the trunk.