He is most likely bound and determined to destroy the model!!!!

I have 40 years aeromodelling experience.
Some years ago a friend, who was a commercial pilot with hundreds of hours, asked me a similar question. My advice to him was to allow me to test fly and trim the aircraft and then teach him to fly it. His response was that it is only a model and if he could fly the real thing then he could handle it. The take off and initial climb out was fine, while he was directly behind the model, he then made a left turn and promptly rolled the model and flew into the ground whereupon the aircraft was a total loss, including breaking the carbi off of the motor!
My point being that it does not matter if you have lots of experience with full size aircraft , another form of radio control i.e. cars, boats etc, or theoretical knowledge. None of this will help very much.
Basically anybody who would suggest that they could give you three tips for a supposed successful flight totally unassisted is full of #### and should not be taken seriously.

Russell