User blog comment:Delwack/Mynet Tweaks - Increasing Vit (and shoe) usage/@comment-25474140-20160423053530/@comment-2098192-20160424064409

I presume since there were so many empty spots before that it hasn't affected round battle encounter rates. If round battle encounter is 20-25%, they just added like a 3-5% orb enemy encounter rate.

Adding an orb here and there is pretty great. That said, I don't think a few extra orbs is worth the tradeoff for the vit since orbs tend to be a miniminal to non-existant problem just from playing regularly.