[QUOTE=Gee;6799390]I strung Cyber Flash mains at 55 lbs and Head RIP Control crosses at 57 lbs.
If you are willing to experiment further, I recommend trying Polyfibre Black Venom in your hybrid setup.
I've had success with Technifibre NRG2 17 in the mains at 58 lb and Polyfibre Black Venom 16L in the crosses at 55 lb on my Redondo Mid racquets. I used to play a full bed of NRG2. I found that I get extra pop, a bigger sweetspot, and a slightly stiffer stringbed by adding the Black Venom.
I don't know how Black Venom will play with Head Rip Contol, but it might be worth a try.