I got a 5109 after my serial number. The woman from Escort I talked to said that the Redline had no software glitches initially and if I wanted to check when it was made, to check the last 4 numbers after the serial. 51 being the week of 2009. I should not have issues with this production model, or would I? I'm not sure when the first batches with the software glitch were made.
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