If you have settled between those two mice, I would say the Kova +. Considering that you are getting the Roccat Isku keyboard, I would look into the roccat kone pure line and the roccat kone xtd. They are a little more expensive but the roccat talk feature in the keyboard is designed to work with the mice that have it. The Kova + does not have that feature. I personally just order the Kone xtd. But again, between the two you have chosen, I would say the Kova +.