Get the x50.

 

If the plane gets you that's it, you're caught. They work in teams and a patrolman will pull you over. Lots of CHP tickets are 'estimated' by the officer, there again you're caught.

Laser, again you're caught but currently laser is RARE. Do your own googling and find the numbers. >99% Cops are all still using radar not laser. If the fuzz all start using laser then detectors become obsolete.

I'm a bit of an electronics guy and I say before you shell out cash for top of the line detectors try a cheaper model. They all basically work the same and many have identical components. I've had quite a few over the years they seem all about even, some only slightly better than others.