Question about spider fluff

I lurk here because your sweet friends are helping me reduce my arachnophobia, and also because I absolutely LOVE fluffy creatures. I learned a lot, am aware of the issues with handling, etc, so this is just out of pure curiosity:

How does spider fluff feel? Are the urticating hairs only on the abdomen or everywhere else as well? Are Curly Hairs, Pink Toes, and other hairier species as soft as they look, when their legs brush past your hands?

As a side note, I only have one experience of handling a T, a Red Knee at the zoo when I was a kid, and I still remember the soft pats of its feeties on my palms 🥹 and that we were strictly told not to pet. The next time I had the opportunity, I passed because I was afraid of how I would react and didn’t want to endanger the creature.