I haven't been on here in a long while, but thought I would drop by and say hello. I just replaced my 3.863 from 2008 with the 3.893 I just received fresh from Valentine today. I live in an area with ESP, but Valentine wanted $189 to update it. I sold it for over $300, and the new V1 was $399. $99 is much better than $189.
Anyway, I called in to V1 and spoke to an engineer about the programming section "L" where it states "This section allows you to force Legacy (pre-ESP) Concealed Display". Apparently it will force the unit to detect a legacy peripheral so it will work. I have a couple legacy peripherals. I have a concealed display as well as a remote mute switch. Everything was working, but I asked the engineer at V1 if I should "Force Display" or not because I have legacy gear.
He emphatically said "NO! That is for something we have coming out in the future". I have no idea what he meant by that, but that is what he said. So far the 2 units appear the same, I have not had a chance to check out the new traffic feature but I will let you know how it works out.