++1 for the -740. The head MFWIC for the McKinney TX outfit is Walter. You can talk to him almost anytime with praise or complaint, he really likes praise the best. Can you talk to the head man at Garmin? Full disclosure, iFly gives Washoe County SAR, AirSq, a price break annually on the iFly software we use on our Sheriff supplied Nexus tablets, Garmin was not interested. Dan from Reno