So I'm in the market for a new handheld scanner. Been using a Pulsar Axion Key unit for the last couple of years and want to get something a little better with range finding. I want to stay under $300o and these two seem like the best bet. Have had good luck with the Pulsar units but this AGM caught my eye. Looks like it a 640 unit versus a 384 unit. Also uses standard 1860 batteries instead of the expensive, proprietary Pulsa batteries. Anyone run one of these or compare it to the Pulsar?