One thing to keep in mind when "flight testing" aircraft in any RC sim:

As we all know, expo and dual rate settings can really make a plane "feel" differently. Be sure to verify that your control throws behave as expected. Spins and high-alpha 3D maneuvers are, of course, effected greatly by how much the control surfaces are being deflected and by the expo setting.

The TacCon controller, with stock Tx configurations, typically supports "flight modes" on the top right 3-position toggle, often with a low rate and high rate/3D setting, as well as custom mixing. When using your own Tx, you can either setup your Tx to handle expo and D/R as desired or can use the Edit Transmitter menu to configure a "software radio", with full control over Tx settings. You'll see a big difference in performance/handling as Tx settings are modified, just like your real model at the field.