I was wondering, how the change from cryptonight "normal" to "heavy" algorithm has influenced the hashing power of different mining hardware.
Therefore I made simple hashrate "study" for my 3 (small) systems - if anybody is interested -->
http://sumokoin.aeko.at/sumoheavy.htmlCurious about other hardware experiences / figures ... and possibly about improvement of my settings

BR garantie
I see the same problems (with xmr stak)...I hope cast xmr will be updated soon.