Got the hard badge using Kasic's strategy in all levels after getting the Booster block. Before that you can use only Sleeper blocks as that's enough for the earlier levels (and before you get the Sleeper block, just use the basic one).
pcbb97, if your active power is greater than your idle power, you will ALWAYS deal more damage with manual clicking. Notice the screen shows "Total damage/CLICK" and "Auto damage/SECOND", depending on the frequency of your auto click the second value can be higher.
Snaks, the problem is that only the digits 0,7,8 and 9 show up. Exp gain is still working like it should, you just have now idea how much exp you have :/
Regeneration should be fixed now. Try it and let us know.