So I have driven with the Redline for a couple of weeks and here are the things I love about it:
Built like a tank so incredible build quality
STELLAR sensitivity across the board, as good or better than my beloved V1 3.813
Things I do not like about it
Audio ramp up
not as much info as the V1 for situational awareness
No band segmentation (wanted the features of the STI R such as RDR off option)
With all of that being said I might be selling off the Redline. I can crown it the most sensitive dashmount RD in the world but to me it is a little dull, since I am SO USED to the V1 and all of the info it provides. I am sure it blows away V1's that have firmware 3.851 and above (my experience with newer V1's is mediocre RD's). I am just happy I got to try one out for myself.