RE: best Turbine Trainer??
Kinda depends on what size turbine you want to buy and if you want a ARF or a kit to build.
Smaller turbine and a kit to build go for the JetMach. If you want a ARF and a smaller turbine, the Baby Boomerang gets the nod.
For a larger turbine the Boomerang XL will fill the bill. It's an ARF also.
There are all excellent flyers, slow landings with a great flight envelope.
BTW, all three of these are sold in the Dallas area.