Best Mounting position for KA Alert for X50

I was reading speed zones test results. I noticed that mounting high increases performance even in the same test.

Look,

Its over the hill test.

http://www.speedzones.com/over_the_hill_test.html

Detector X Ins K Ins Ka Inst X Con K Cons Ka Cons
PRS1V** Y, Y, Y Y, Y, Y Y, N, Y Y, Y, Y Y, Y, Y Y, Y, Y
Valentine One Y, Y, Y Y, Y, Y N, N, N Y, Y, Y Y, Y, Y N, Y, N


**PRS1V is a combination unit containing a Valentine One and Laser Blinder from Tiger Lily Products. Note it was mounted higher than other detectors in the pickup pictured above. This extra mounting elevation explains the improved performance of the Valentine One in the PRS1V configuration compared to the evaluated Valentine One placed in a test car.


My next question is can we apply this logic to all RD.
And also is the any other head to head comparision of mounting positions of RDs

Thanks

Prof jimbo. Waiting answer from you..