Definitely get the trainer. Many people give low-wings too much credit for being "forgiving" when in fact they are not. They can surprise you when it's least expected. I have one that's similar to the Pulse, and it is more responsive and less stable than even some scale planes I've flown. A Great Planes Big Stik or Hangar-9 Ultra Stick would be better choices for a second plane, in my opinion. A low-wing taildragger would probably make a better third plane.

NorfolkSouthern