RE: Sport plane as a 2nd??
Here's some second planes depending on where you plan to go in RC:[ul][*] World Models (Airborne Models) T-34 - Great aerobatic trainer/Club Racer/first warbird[*] U-Can-Do 3D (.46 or .60) - Super good 3-D ship that can be tamed down and fly slow and gentle until you want to step it up.[*] Sig 4-Star - The 'traditional' second airplane and first low wing, tail dragger.
[/ul]Free advice is usually worth what you pay for it, so ask around the fellows at your flying site; then do what you want. [&:]
quint