That was exactly my point. A handfull of people here are willing to test (me too), and report their experience. Others are more cautious, and would like to have reliable phones for daily use.
XM kernel is great, hardly big improvements could be made to it. Maybe it's time to slow down the development and bring more stability. Otherwise, we (especially X-Mister) are risking to get into a wild goose chase.
As for me, I ended up somehow with #122 (repacked for RENOVATE, by MacSeion), and can confirm that it is rock solid, and good with battery performance. I gave it two battery cycles to prove itself, now I am ready to test #139.
And, I do believe that it takes at least this long (two battery cycles) to check out the kernel and its performance (battery wise). If you do it on daily bases, there is a risk that you can't see it in its awesomeness.