Yeah most cars patrolling the highways are running radar. From memory they're still on the super ancient Stalker Dual DSR. There has been a huge uptick in the use of stationary Laser though - maybe heaps of cars have radar detectors now, or the various cruise radars interfere with the Police ones? From following a patrol car for a while it's surprising how often the display goes to "RF" meaning it's got some sort of interference going on.

Do your cops still use radar a lot? Here in the states we rarely see police on the roads since covid. I still run an old Passport in all of the vehicles, but mostly the noise is makes is falseing.

Ok fill me in here but IMO rear is a complete waste of time? If you're getting pinged from behind with radar and you're still going too fast then you are a big stupidhead and should receive a ticket? If you get pinged from behind with laser and you're going too fast you're getting a ticket anyway. But I have literally never seen an enforcement situation where they were clocking cars from behind.

High up for front radar is definitely better, I just lost most of the rear laser detection on mine when above the rear mirror. I high mount in rural areas and just below mirror for expressways. The laser on overpasses are just too common.   Still I have an old set of jammers in storage that i just realised I could convert to detect only and fit.

No metrics to go off, but general consensus from what I've been reading is the higher the better in general, anything to get them clear of internal obstructions ie seats/headrests etc as well as improving sightlines over other cars/hill crests as well🤷‍♂️   I've had plenty of rear alerts for what its worth, but still getting to grips with all the settings/understanding all the things that set them off/adjustments to reduce false alarms