I'm going to drill...so what are the groups thought on what is the best NMO mount?
Only downsides to those is they can't be installed blind and sometimes requires a third hand. I've never really liked them personally...only real option for thick surface mounts however. That being said, if you are worried about pull-outs from low branches or parking garages...try a different antenna. That's actually the reason I dropped the Comet CA-2x4SR from all of my vehicles (had two or three deployed at the time) overnight...struck a branch about midway up on and it ripped the mount out of the roof on one of my vehicles. Minor sheet metal damage but since I went to 1/4 wave and knob style antennas on every vehicle I put a radio in. Haven't seen a single difference in performance.I like the 3/8 drill NMO mounts. Small hole and more surface area means less chance for a pull out from a low branch or parking garage.