Yep I had built and flew the Super air, and have maidened a few Speed airs, they flew very, very well, and for the price, you cant go wrong. I have a video of a speed air take off and landing, so would email them to you if you want?

The speed air 40 stands up reasonably well to mid airs with fast speed prop jets. well not really...but how many of those do you plan on having!! anyway!

Also have a true pro at the club who flies the bravo 303, He recommends it to all! and it is amazing to watch fly!! does the book (if i knew the whole book)

So to answer your question NO PROBLEMS!! Buy one!!