Can Flank Steak be cut too thin?

Attempting to take flank steak kabobs to a Milwaukee Brewer game this weekend. I precut the steak into thin cuts and put them on the bamboo skewers and will put the whole thing in the marinade tonight. Now I have a concern I may have cut them too thin. They look similar to bacon... Am I going to end up with shoe leather because they are going to cook so quick on the grill or will my marinade dissolve these thin little cuts even before I get them to the grill? Do I need to start all over and use the cut slices for some sort of stir fry? Any help is appreciated!

Well, if they're cut really thin, I certainly wouldn't marinate them overnight. Depending on the contents of the marinade, you could break down the proteins to the point that your meat is mush. Furthermore, it's just not necessary. If your goal is to infuse the meat with some flavor, you don't need that long for very thin cuts. I'd just marinate them for 30 minutes or so, just before they go on the grill.

Best,
Michael