I tried kernel-bfs v42 for a few days, but I had to revert back to kernel-power v42 due to some annoying features.

Browsing with MicroB was sluggish. Touch screen did not respond well enough to have a smooth web browsing.

Time to time desktop transitions were not smooth (even when CPU was not loaded)

Posivite was that pulseaudio used less CPU during mp3 playback.
- BFS ~5%
- CFS ~10%

Otherwise OK. I'll follow up BFS progress.
Thanks!