I have just gone a full day of running 2.16 running on the same charge from the time that I flashed last night with about 30-40% battery life to spare with reasonable phone activity. I have so far installed a decent majority of my essential apps like Microsoft Myphone, RSS Hub, YouTube, GoogleMaps, Facebook, Arcsoft MMS Sprint, and Maverick's 6.5 titanium themes. I have yet to install any of the games I would normally play during those times where I "sit on the throne" or whenever I need to kill time. Frankly, this might even be a good thing but at some point, I'm sure I'll get around to loading it up.
I am really happy to report that I have not experienced any hiccups or lag so far with this ROM. It is very responsive with no lag or hiccups that would be otherwise caused by the normal application startups or normal operation. It's simply amazing to me how much of a difference the 6.5 native kernel has done for this release.
Right now, I am resisting the urge to load up additional TodayScreen UIs like Manila 2.1, PointUI, or Touchfree because I simply do not want to "open the door" and invite any potential reasons for lag, hiccups, and/or additional reason for battery drain. Again, I'm sure I will load it up just to put this to the test but right now, no. I'm appreciating this ROM for what it is at this point.
Now if only Maverick or whomever did those themes in Silence's new ROM could be released in a cab.