Some of your descriptions of the different Extra designations are a little off. I offer the following for clarification.

Extra 200 is a Twin seat low wing

Extra 230 is a Single seat mid wing

Extra 260 is a Single seat mid wing

Extra 300 is a Twin Seat mid wing

Extra 300S is a Single seat low wing

Extra 300L is a Twin seat low wing

Extra 300LX is nothing more than a 300L with an experimental tail group added to improve performance. It was only added to a few custom airplanes, and never actually released from the factory as a 300LX

Extra 330L/Extra 330LX was NEVER produced by the factory. The 330L is nothing more than a 300L with a 330HP engine added to replace the stock 300HP engine. This was never released from the factory in this configuration or designation.

All you guys flying a 330L/330LX don't really have a factory scale airplane. They were never produced by the factory. These planes were modified and "nicknamed" by private owners.