according to radars.com.au - the link i put up at the start the V1 and whistler 78se acheived very similar results, plus the whistler was more user friendly plus obviously alot cheaper.
I did have an rx65 but it tended to miss signals from time to time.
i will look into the escort and also the vertical bracket idea. cheers

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1997 green GC8 with the usual mild mods.