exactly where I am with this!
I just installed free program from Play store called "Stability Check".
I then unchecked my "set at boot" overclock script and rebooted back to stock clock to run the Stability Check
(I would have created a new script called "clock to stock", but I didn't know what the stock values were! After rebooting, Tweakerz tells me these are default Bionic 4 slot values:
mhz voltage
300 1025
600 1200
800 1325
1000 1388
Once restored to stock clock values, I began the Stability check, which takes the Bionic processors through all variations of overclocking and voltage variations and tells you what the limits are.
Apparently, this test can take 5 hours! The phone is plugged in, as the test sucks battery life.
Hopefully, once it is over, I can post some good 4 slot cpu and voltage settings for overclocking/undervolting.