Did you work on the CHC implementation (Occlusion octree scene manager...)? I have tested the existing implementation by pulling out the relevant files from plsm2, and while it does work (CHC works, pure frustrum culling doesn't) I think it could be done ... better

. The obvious thing is in the todo of plsm3 - to make it a project of its own. Another thing you have mentioned in the forums is to make use of a custom renderqueue...? There are more things that I don't remember.
In short, if you have worked on the Occlusion Octree SM, it would be of great value if you released it (not only to me, I think). If you haven't I'll start working on the sources from plsm2 (I understand if you haven't - maybe not the most interesting thing to spend your time on).
EDIT:
oh, and take the time you need, release what you feel you can release, etc. plsm2 is an amazing piece of work and developing anything on the side of work&family is always going to be slow. So don't feel bad about it...