I've been using mostly HSM Advisor on my SBL-15, so far for aluminum, Brass, Delrin, and 303/304SS. Which materials, operations, and DOC have been giving you trouble?
Parting with Tormach's turret parting tools and GTN-3 inserts has given me the most trouble, but that was with parts that were really too small an ID for the 4-mm wide parting insert.