What scott said... Here is the 2004 motortrend tests...
http://www.motortrend.com/features/c...12_0402_radar/
V1 has the highest ratings.
The Bell 985 is probably the best bang for your buck detector, but the V1 remains in a class of it's own IMHO.
Please note that Radar Roy's own tests show the V1 beats the Bell in K max continous and X and K in maximum front test.
I note he doesn't do any rear testing which is where the V1 kicks everyones butt.