Answering the original posting, yes you can but you sacrifice size of the bulb. The scape is the flower stalk of the plant, and as the plant naturally wants to reproduce, it wants to push the flower. When you cut off the scape, all the energy that the plant would have put into growth of the scape and flower, then puts into the stores in the root, ie the bulb.
The variety that we grow was brought to the USA from Northern Italy in 1910 when my Great Grandfather immigrated here, bringing 5 pounds of garlic with him. We grow it and harvest it the same way that he did in Italy more than 100 years ago and because the variety is planted with cloves from that original variety, it is exactly the same as it was in Italy.