The Valentine is the best. However, A policeman friend of mine and a loyal Corvette owner, tells me NOT to use the radar in my Viper. He says it just shows intent to speed in a car like this. He advises to just pick a stretch of highway (without timing marks), drive it both ways to check for cops and visibility, and go for it if you must. He stressed to watch for areas where deer might be concealed by trees. He did not encourage me, he just told me the smartest way to avoid a ticket.
Yes, the Valentine seems to be the choice, but I have been driving without it taking his advice.
Sincerely,
Jim