I am trying the 80 MHz speed on my V3 Pico+ now. It’s in a hat and I’m making a bunch of them as a gift to my camp, so the hot chip is noticeable and I have a concern that it could even burn somebody’s scalp. I’ll post with observations.
The heatsink is also a good idea. Did you fabricate or purchase the heat sink. I’d be interested in what you’re using.
Thanks for posting these tips!