Also keep in mind that the la series of engines is much lighter than the other OS engine lines, and they don't have near the power.

I had a 40la on my LT-40 and it needed a huge hunk of lead hung under the engine to balance the plane, but I switched it out for a super Tiger 40, and it balances the same without any extra weight. the added benifit is the super tiger puts out more power than the 40la.

I am just learning, and can not imagine training on a mustang.

Get a simulator, and see what it is like to fly a trainer vs. a bi-plane vs. a mustang, you will be surprised!

I was on the simulator last night, and was doing ok with a bi-plane where I only crashed once in 20+ landings.

I did not crash on my 20+ minutes of constant touch and goes in the trainer though.

I recently saw a kid wreck his mustang because he was new, inexperienced, and had the ailerons reversed. It jumped up and flipped onto its back. Did not even get more than 4' off the ground in less than 5 seconds.