F'n sweet! Even my wife liked it
... She did ask in disbelief "Is that going on a Beetle?!"
Heck I would worry more about hydroplaning with large tires than slippery braking in odd conditions. Even in my old 911 it got funny in the wet when braking hard. Essentially the front end is a little light for the stopping power, even with 2 pots. You just needed to learn what to expect.
For my '66 Westi the 944 N/A brakes work pretty well (front and rear). Granted have not practiced at all panic/fast stopping, which is lazy on my part.
good luck with the project and keep us posted.