The Somethin' Extra is usually a bit sensitive for use as a second plane... Very large control surfaces, and close coupled (short fuselage) designs are great for Fun Fly maneuvers... but poor for people that haven't had more experience than just flying a classic trainer type.

The 4* series is a much better choice. The control surface size and the fuselage length are closer to the trainer design. Build with the full wing, and when that's not maneuverable enough to pleasy you... clip off the outer wing bays, and move the tips. roll rate increases. For even more aerobatic ability, incrase rudder and aileron area. (up to double the rudder and 1.5 times the aileron) Move the CG as far back as 1/2 inch behind the spar... (better be good at flying first...) It then is capable of competing in most Fun Flys... (if using a .46 and a long low pitch prop) The 4*'s are planes that can grow in capability as your skill improves.

On another track... try the Sig Kobra (you'll need a .25 FX or equiv) For a light, FAST aircraft, with good slow flight characteristrics and trainerlike landings. The progression here is to slowly make the plane heavier, to practice for flying scale warbirds. When you've got it carrying about 1 lb of lead it is about the same as a Top Flite Gold Edition P-39, except the Kobra will stall in a straight line due to built-in wash-out.