Has anyone ever used a Garmin Alpha 100 in conjunction with OnX maps? It is primarily a dog tracker but is also a GPS. I have downloaded birds eye maps for where I hunt here in Florida and use it as a navigation unit for marking stands, trails to get in and out, etc... and have read that this unit is compatible as a stand alone gps with OnX maps on their website. My purpose will be to buy the Colorado chip for a public land hunt next year. I know a lot of guys out west use this exact unit hunting cats and wasn't sure if they were working off of Garmin maps or using OnX.