I attended the air brake endorsement course so I can obtain my Q to drive our Class A diesel pusher. I was very intimidated when I arrived as I thought this would be very technical for all the commercial students. Colleen was leading our class and I was very impressed with her delivery and patience in answering questions. She really did make me feel comfortable, which made the day that much easier. It is a lot of content in a short amount of time, but emphasis was made on the right information. She recommended to review the book a few times to... read full review »