Don't use a heading hold gyro at all. If your gyro is a newer JR gyro with both heading hold and rate mode, just switch it to rate mode. I'd bet there isn't a single airplane on the market that absolutely requires a gyro. They do however require better use of your brain, and your left thumb.

Don't slam the throttle open. Start the takeoff roll smoothly and don't use full power until your flying surfaces are functional (around 20-25mph). Learn to use the rudder. I know there is great resistance by some people to even putting a rudder on our jet models, but I can't imagine flying an airplane without it. I guess that comes from my aerobatics background. Len's comments about holding up elevator through the takeoff roll ring true on a number of jets out there due to the landing gear geometry not being optimal (especially those with heavily loaded nose gears, high thrust lines, etc).

Try to fly the airplane like a jet, not a toy airplane. SMOOOOOTH FLYING..