I am still at wm2003SE and ready to upgrade to "Official" WM5. Is it possible to just prevent the radio upgrade so I don't have to revert back? Or is it better just to go through all the steps of upgrading completely then downgrading radio?

I am currently at YE05 but can upgrade first using Verizons maintenance release to YH25 if that is better.

TIA
xmurray