What's the safest way to hypofractionate treatment for prostate cancer?

The longest published data is on 2.5 Gy to 70 Gy from the Cleveland Clinic.

That being said, the three randomized trials which have been presented or published (Italian , MDA, And FCCC (published recently in JCO)) have not shown any superiority of hypofractionation over conventional fractionation. Ra...