To be totally honest, I never used the potter from CO2m8 after trying it the very first times and noticing the delays, I always used Sv's since it is much more real-time-like ;) The HP functions I found exquisite about CO2m8 as soon as I read the post back then (and note that the tool back then didn't work for me) was the escape scroll at low hp, and the autobotoff. After trying the hp-potter, I found it too delayed, and risky to be used on an "afk char". Since you tell me you retuned the timers for that, I should give it a try as soon as I am more awake (4am as I type :D). Disconnect seems to be more efficient, at least when triggered manually (D button.. now works everytime, before it was like 1 out of 4). The escape scroll, I still find "laggy": the real usefulness is when someone tries to pk your bot (either knowingly, or thinking that I'm there playing), and so there is absolute need of a fast action, and a single second delay may be fatal (as it has been more than a couple times with my chars). It saved me tho in a few attempted-pk situations, as I noticed from the short delayed screen before the client switched to city background.
Regarding the sit action triggering, my example was... well, more of an example than a real issue with sit itself... actually, in my opinion the sit action should be "delayed", if it sits too often like SV makes your tao do, then it's dangerous for melee classes, risking to go on in an endless sit-gain stamina-get hit-half stamina-sit-etc. loop.
The "refresh" action (of which sit was an easy to make example, since you can check it on the fly by casting SH and noticing how much time it needs to trigger) in my opinion should be all focused on health (not even mana maybe, but I still have to use CO2m8 for my taos so I am guessing and not talking by experience). A plausible refresh rate for HP check in my opinion would be 500ms, allowing you not to hog your CPU in case it's brought up on just a few chars of the running ones, and to make possible a fast pk escaping action. But I suppose a client-side configurable refresh time for each/selected actions would be not to troubling to implement and especially grant flexibility depending on each char "habits" ;)
And now for something completely different... lsomething I would've always wanted to tell you, but always forgot: levelup timer in main window. Why not implementing a 5mins levelup timer by default to show the timer there, instead of having a much shorter time span calculation?
Example: I am hitting a bunch of mobs ganging on me, timer goes to lowest value, then I start jumping around looking for other mobs, timer shows "4ever". While it will be a correct estimate on chars in TG and so constantly attacking, it's an unreliable measure for chars out in the wild ;) If you think it wouldn't be a resource hog to do that, I suppose that would boost the information given by the front panel.
And hey, I am remembering now sill other think I should've told you sooner: this one is regarding the way the main window is shown. When you have quite some chars, and so quite some lines to display, the panel gets taller, and always covers part of CO window. Why not trying to setup a grid? Instead of a fixed number of columns (just one) you could have, for example, 2 or 3 (or more) columns, so the pane could get wider but narrower, allowing for a moveable pane which covers possibly none of the CO windows. Again, the possibility to disable the always on top would make it more comfortable to bring forward/backward the panel while doing other things.
Oh, and lastily, the "update rate" in main configuration pane is referred to just the informations in main window (as I'v always thought), or is also the internal timer at which CO2m8 checks variables for health/stamina/mana/everything else?
Regards ;)