I am very impressed with Secrets of Question Based Selling, a book by Thomas Freese. He of course has spun this into course work. I have no connection to Mr. Freese other than thinking highly of his book. Here is a link.
Training Programs - Strategic Sales Methodology and Training – QBS Research, Inc.
Good luck. I have been a professional salesperson my entire career. I agree with alot of above. Most classes are a complete waste.
Larry