The Fxr is fairly light bike, so hence putting on oversize tyres is a waste of time. In fact it may be detrimental because the tyre wont be worked hard enough to get it up to working temperature.

Third the TSS opinion.

One tyre you might ask them about is a Dunlop GPR 70 or Dunlop GPR 80. Used them on my CBR 400 back in Ireland, which weighs in at 160kg. Yours might be a bit light for them though. The 70 was sport while the 80 was a sport tourer. Really liked the 70. The 80 was exactly the same compound, but with more treads. In Ireland they had a distinct advantage over the Pirelli/Metzler/Bridgestone competition: They were a truckload cheaper. Not sure about over here though. If nothing else it gives you another option to ask about.

My 2c.

Ps. They were really grippy. Or in other words, they didn't last to long...