Hi, is anyone mining Groestl on BKX using new firmware v2.2? 

I have upgraded and some of my BKX has many rejected shares, some keep on rebooting after about 10 to 15 mins.  There is only couple which is stable on Groestl but very small percentage.

I am mining on MPH at the moment. 

Kindly share your experience on Groestl and on which pool.

regards