Low Carb Protein Bars

If worried about protein synthesis (e.g. over <20g protein), why not take 5g of leucine with the protein bar?

My only issue with Biotest Metabolic Drive bars is that:

A) They taste really good
B) They are WAY too small, like, the size of a highlighter

I might buy a box of the FINiBARS to see what the fuss is about.