Barry before you decide to go on this course have a look at - Guest Login. There are 6 by 30 min videos that Phil Flory has produced on air brushing. Think that probably the only thing you will not get from these videos, which you may from a course, is what you are doing wrong. What you will get is I am sure mostly what the course is about. But at least if you do go on a course after viewing these tutorial videos you have a very good idea of what it is all about. Will cost £3:00 per month to lock into these tutorials big big saving. Not only on Airbrushing but on producing models from getting them out of the box to completion, Decaling, masking & many other things. Wow surprise surprise including Klear !
What I have found in my short history in modeling is exactly as Steve has mentioned practice & more & more practice. I am also of the opinion that it is best to dabble first of all without other than minimal info make mistakes as these lead to the correct & remembereed way of doing things. Then fill in afterwards with any difficulties from all the expertise on this Forum.
As my wife Pauline will constantly remind me daily. "Why do you not read the instructions first". I really do hate pedants. She is good at cooking though.
Laurie