This still is starting to getting into the debate about what is a good 2nd plane. True you can fly your trainer with confidence and what you think you learn with the trainer as far as 3d or most acrobatic manuvers with the flat bottom wing will not apply with a true acrobatic plane....a trainer simply will not go where you point it and will fight any input except to fly level....learn to land #1, if you have that down, learn to land in a cross wind #2, then get something that will translate your stick actions better..I flew a LT40, then went to a sig SE, was a little big step, I would recommend the 4*, good price, design of plane has ease of repair, and usually can use the same engine from your trainer...trust me you will see what point and go means, you will have to fly a 4*....

GOOD LUCK