Add a conditioning day to your routine and use Tabata intervals when doing it, that'll help keep you from gaining a bunch of unwanted fat. Even with my somewhat crappy diet I managed to gain 30some lbs and lower my BF% a bit at the same time when I was doing the conditioning.
No such thing as too strong Rev. Not in my experience anyway.
Kinda the point.
I love zercher squats because they have huge athletic carryover for grappling. It's great to see the look on the 350lb guy's face when you loft him up from the ground during a takedown. I blame this ability on a combination of zercher squats and power cleans.
On the other point, EAT MORE DAMMIT!
I train every day but Sunday, usually twice a day. I'm currently focusing on stand up. My diet still kinda sucks, but that's mostly a result of forgetting to eat until the last minute.
I've done some Krav, and have a friend who got locked into a year long contract. IMHO it's a good "realistic self defence" plugin for other more complete, systems of fighting.