I did decades only playing the original Wizard neck. I didn't like anything thicker and there's not much thinner.
More recently I got a Charvel DK-24 MIM and fell in love with the neck. It's thicker but still thin. The radius is more round than the fairly flat Wizard neck.
Over the last few years I got a Suhr Modern with a thinner neck, a USA DK-24, two Tom Anderson guitars (one with the Even C and one with the -.020" C), and most recently a Kiesel.
I have a large collection of guitars with the Wizard necks that sadly now mostly don't get played because the necks just feel too thin
I can shred on all of them but the Even C is about the fattest I'd go for my personal tastes.
Nobody has mentioned compound radius, but that's something to consider - they're more round closer to the headstock for better chording and flatten as you get closer to the body. Most are 10-14" or 12-16".