I tend to want to do all things with proper preparation, and taking whatever measures necessary to avoid risk.
I've done p4p a few times abroad, and three times in Japan, and every time it was fairly simple - just everything covered.
I plan to meet with some newhalf providers occasionally in the coming months/years, and as the risk is greater in their niche, I plan to be more protected.
I believe BBBJ (giving and receiving) and CAF (giving only) will be the extent of my play, which in itself is very low risk. However, I have a family and a lot to live for, so I'd rather reduce the risk of contracting the big one from "almost zero" to "zero".
With this in mind I'm ordering Prep online, which I'll take in the 2-1-1 on-demand dose. It may be overkill, but I think it's worth the 6000 yen to be completely protected.
Does anyone else take Prep before playing? What are your experiences?