[opmac]

But they do work without issue, until you start stressing the CPU. In the majority of normal workloads, you don't run into thermal throttling, especially if not using the official case.

Also, if you have the official case and want to do this mod - for a few bucks more than the cost of two "pi fans" (which run $8 on Amazon), you can get a well designed case with heat sinks and a fan.

I see very little reason to actually do this mod versus buying a properly designed case besides the urge to tinker.