Congratulations! But don't badmouth the mag mounts.
All I have used for many, many years is a 19-inch whip in a mag mount. Operation has been superb, too, both on 2 meters and 70 centimeters. (It's a quarter-wave on 2, and a 3/4 wave on .7 ...SWR of 1.5:1 or less on both bands.) I find it works better than all those expensive, gain antennas, especially into distant and hard-to-reach repeaters.
In fact, the one I just put on my car a few weeks ago is one I first used in 1979! Same coax, same whip, same magnet.
I realize I've only been a ham since 1964, and still have a lot to learn, but I'm pleased with the performance of these cheapo mag mounts.
uhlawpup - deep in the heart of Downtown Houston
CRUX SANCTA SIT MIHI LUX
NUNQUAM DRACO SIT MIHI DUX