I think quite a few of us use ACV, but I'm terrible at remembering to take it so have no reliable BG results to share. It definitely suppresses my appetite.

There is a thread on Vinegar as nature's Metformin, the Amy Berger article in it is very good,http://www.tuitnutrition.com/2014/1...of-vinegar.html
and Dr Fung is a big fan.

http://forum.lowcarber.org/showthread.php?t=472620

The plan I follow has a limit on Dill pickles, no sugar, up to two servings a day. Lemon and lime juice is limited to only 2 teaspoons/day. You're a big guy...3 pickles would likely be fine.

Dill pickle roll-ups are great for a portable lunch.