Think about it for a moment, RVD. If the symmetrical and flat bottom airfoil wings are the same in area, how can the symmetrical wing be faster? It's twice as thick!

While a flat bottom airfoil will fly a tad slower, it will now fly as well as a symmetrical airfoil at high angles of attack. The stall break comes much sooner and abrupt with a flat bottom airfoil.

Yes, there are people that truly need flat bottom airfoil trainers. They are few and far in between, however. Most newbies, especially the youngsters, can start with a fully symmetrical airfoil equipped trainer and never look back. They become better pilots because they actually learned how to fly.

I realize that others have different opinions and do not feel threatened if they disagree. That's what makes dialogue fun.