I am just curious. Some of the best IMHO are Magnus, Zwickey and Journeyman. I am just curious. I am just curious. In other words, penetration.
Flesh produces very little resistance, so differences in petetration are generally negligable.
Zwickey Black Diamonds are carried by a lot of catalogs. I beleive Bowhunters Warehouse, FsArrows, and the Bowhut has them. Any proshop should be able to get them for you. And any traditional outlet should also have them.