If it is too powerful, try higher tension with your favorite poly, go to a thicker gauge or try a stiffer poly. When all else fails, try ALU Power (stiff and lasts 6-8 hours) or HyperG Soft (soft and lasts longer).
I had a PS97 and am playing RF97. I have Alu Power 17 cross and Prince Lightning Pro 16 (syn gut) mains. It's very controllable and low powered when I need it to be, but springs to life when I swing out. I'm at 60/57 tension. The Lightning Pro has really good tension maintenance and stays slippery after it notches, so performance is lasting much better than FB Alu power.