Keep in mind that you'll be learning a lot more than just additional piloting skills when you buy your first glow plane. You need to learn how to fuel and start your glow engine, how to properly tune and adjust your glow engine, how to properly clean and maintain an airframe with iron-on covering that regularly gets splattered with glow fuel, how to setup, trim out, and adjust the control surfaces of a 4-channel glow plane, and a whole host of maintenence and repair issues that have nothing to do with what an awesome pilot you are.

If you're going to be flying with an instructor on a buddy box, a "Stik" variant or a "low-wing trainer" type aircraft such as the Sig Four Star or Goldberg Tiger 2 will fly and land in a stable enough manner that you can train on them from the outset. Forget the Twist 40 for now. A short-coupled fuselage and large control surfaces for 3D flying are not your friend. Save the Twist 40 for next season when you've gotten a lot of stick time on a good aerobatic sport plane under your belt.

The following list of planes would be good 'advanced trainers' for you to fly with the help of an instructor until you can be checked out and "solo'd" on glow planes:

Hangar 9 Ultra Stik
Hangar 9 Super Stik
Hangar 9 Pulse XT
Great Planes Big Stik
Great Planes Easy Sport
Great Planes Rapture .40 (kit only)
Sig Mid Star (kit only)
Sig Four Star
Seagull Models Spacewalker II
Seagull Models PC-9
Goldberg Tiger 2
Goldberg Senior Falcon
Goldberg Skylark
Model Tech Lucky Stik
Thunder Tiger Tiger Stick .40
Thunder Tiger Cloud Dancer
Phoenix Models Dolphin
World Models LA Racer
World Models Sky Raider Mach II
World Models Super Sports
World Models Super Stunts
Sportsman Aviation Sport Stick
Tower Hobbies Voyager
VMar Xtreme Stik (shoulder or low wing)
VMar Arrow
VMar Ramrod
Black Horse Models Speed Air

Good luck and good shopping!