I never run recon much because I've usually got a tac insert or trophy system in my tactical slot. I usually run all blue. I typically have on BlindeEye Pro, but then it's SoH, Scav, and Extreme Conditioning.
I might take your advice though and toss Recon in there, I'm at 10/80 and kind of bored so maybe I'll pro that perk up. Hate to give up my trophy system though lol