I like the idea of magnetic mounts, but you don't want to use them on all four points. If you get going fast in backwards flight, you can rip the canopy off.
I don't know which QuickUK mounts fit the N5c, but I am sure someone will pipe up.
I personally run the Synergy Push on type mounts on the front two and the standard threaded mounts on the rear two. If you open up the grommet holes just a touch, the push on type can be very easy to install/remove while not being so loose they rattle around or come loose in flight.