i have been using a BEL 985 for a year or so and i am quite happy with it. i also run a Blinder M20. does it make sense to move to a newer unit like the rx65 or 8500 x50 now, or wait until KU is being utilized in the US? i know the tests show more range on the newer units, but i'm not sold yet on switching from the 985 solely for the extra detection range. any thoughts would be appreciated.