Really puffy batting is IMO near impossible to hand -or- machine quilt. You'd probably have to tie it every 3 inches (at the most, depends on the batt and what the manufacturer recommends for maximum quilting distance) if you switched to a really puffy batt.
Honestly, I don't think really puffy quilts have been "in" since 1975. Though I have never been one to care whats "in" or not, LOL