I'm very happy with my SP20's performance with p2pool, it's steady and to spec. I do have a couple of questions though, if someone can help me out:

I want to experiment with the -queue setting, as from my experience p2pool likes this set to zero & reduces the DOA/stale rate. I presume that as there is no flag in the cgminer command already - it is using the default setting of 1? When I add the command "queue":"0" to cgminer via ssh & restart the miner, the queue flag is displayed on the cgminer pools page, but with no value stated underneath, instead of showing 0. Is this a bug, or am I unable to use the queue command on the SP20?
You can change params in /etc/cgminer.conf. You can also replace cgminer in /etc/bin/ with custom cgminer, or with script that will call any excecutible with any parameters. I am not experienced with cgminer in p2pool to help beyond that.

Also, on the asics stats page, am I correct in thinking that board 0 corresponds to loop 0, board 1 to loop 1, etc? I've noticed that loop 0 & 2 are running at a lower temp than loops 1 & 3 - so was wondering if I can increase the watts to those loops/boards via the settings page? Or do the watts have to be the same for all 4 boards (power units on the settings page)?
There are 4 virtual boards in SP20, and the back boards (1/3) are throttled more in temp over 17C because they are not getting cool air. Increase fans or decrease ambient temp, if possible.

Thanks in advance