Load sources described. Create new character. Create Monster. Apply kit "Giant (Ash) Default".
Notice feats list is empty.
Notice Huge Club (default with kit even) is applying a -2 per attack penalty. PCGen calculates +18/+13. PRD has +20/+15. Power says "without penalty". Adding and equipping other huge weapons maintain the penalty. Moving to a size large weapon makes the penalty go away.
Sources: Pathfinder RPG Core Supplements, Inner Sea World Guide, Rise of the Runelords Adventure Path, Rise of the Runelords Player's Guide.
Windows 8.1, Java 8 U 144