I just finished watching a video involving the older Beltronics RX65 with the S7 antenna and was impressed with the lightning fast reaction times on KA band with the detector switched to USA mode. Perhaps EscortRadar can answer this one for me/us. EscortRadar (or anyone else who is knowledgeable), would it be possible for Escort to implement this feature on current Escort/Beltronics detectors which are equipped with the newer M4 antenna? In other words, would implementing USA mode into current M4 equipped detectors be a simple software upgrade OR would it require a new antenna all together? In the event that this can be done, I would think that this should be a no brainer since, from a business standpoint, implementing this feature would only stand to increase sales of Escort and Beltronics detectors. What do you all think about this idea?