My wife requested London Broil this weekend since it was on sale at the store. I tried Naked Whiz's Rub on it (Thanks, TNW!). Cooked it for almost an hour around 375 degrees (I tried to hold at 350 but I passed out from exhaustion and my wife thought I said 375). Anyway, I took it off as my internal temp was above 140. I let it sit for 5 minutes and much to my surprise it was medium.[p]I sliced it extremely thin since I have a commercial grade meat slicer (sometimes when a client goes out of business that can be a good thing). I tasted it and the rub had a nice sweet flavor to it because of the sugar. Then a lightbulb went off in my head: why not a balsamic vinegar reduction sauce to go with it? I had some left over from another dinner I made. I heated it up a bit and lo and behold it helped enhance the flavor of the meat. I recommend trying the sauce to anyone.