Yes, several times. Here is what I found works great
Curious, I use "substantial" branches, not really thin ones- they can burn up. I strip the leaves off, soak in water until just before skewering the shrimp then quickly brush the part of the branch that will have the shrimp on it with a little oil (shrimp sticks to the branch and is hard to get off after grilling.) Then, after skewering the shrimp, I twist some foil on the ends of the branches so the ends don't burn and grill.
Nope, there is not too much flavor for the shrimp- it is just right.
Good luck and let us know how it works for you.