The worst part I "endured" in the car, although there were moments when I thought the car will take some damage.
I did have some shorter lived episodes on my way up, luckily I still had some trees to provide a little cover.
I didn't have my knuckles hit but my toes, I had to crunch to avoid too many direct hits. Still a good decision to take the sandals, I didn't have cold and wet feet the entire trip, as the sun came out briefly later by the time I passed 13000 feet.
The trail was mostly ok, not as slippery as I would have expected