Quick question before I post--we're probably using the "shooting into melee" rules, but are we using the soft cover (http://www.d20pfsrd.com/gamemastering/combat#TOC-Cover) rules?<br/><br/>If you want to modify it a bit while still keeping the ability to protect allies from ranged attacks, one house rule I've often seen is that allies don't grant soft cover to enemies. That way you don't take -4 to attacks when melee characters are in front, but enemies can still get in the way of ranged attacks for their allies.