I was able to add JCE miner for better CNV7 CPU mining performance on older CPUs.
Running the tests now, will try to release a new version ASAP.

One known bug I was not able to resolve was an issue with stopping the benchmark process after starting benching JCE.
The UI is unable to kill the process (as it spawns a few additional processes in the background), but if you wait for it to bench successfully, it will behave nicely.

Will take a look at adding pheonixminer next.

I'll also try to figure out what's up with the p0 state error.