Even with the DSP firmware v1.3 upgrade, the reception is far from perfect where Detroit's system is concerned. It is improved...but far from perfect.
What I have found so far is, if I am moving in a vehicle (inside or near the city limits) with the 800mhz rub-duck, the Pro-96 still easily looses the signal. Utilizing an outside antenna on the vehicle doesn't seem to help much. However, if I am stationary, the reception seems quite solid (nearly perfect). Again, this is an improvement from the previous DSP firmware versions. Monroe county is rock solid now (as perfect as it gets), even when 10+ miles outside of the county line, moving or stationary (receiving from the Flatrock tower).