Agreed; all the other replies . .

A couple more points....

You say you are bored with your Avistar. Are you sure you have exploited all it's capable of? They are quite aerobatic, and great fun to spin, snap roll, fly inverted etc, and is still good for learning with.

As for your take off problems with the new model, all the suggested solutions are well worth looking into, but one thing is for sure, your wing, or, at least part of it, stalled when you took off, caused by one or all the suggested reasons.

Wings stall for many reasons, and it's worth learning what makes them stall, both to avoid it in the future, but also to actually exploit the phenomenon.

Hence me suggesting you learn to spin the Avistar. It's a fun way of experiencing a stall, as opposed to the uncomfortable stall you experienced on take off!

David C.