I have a Tai Ji with a YS 91FZ. It's a wonderful plane, but I did have a few issues. The retracts that came with it are useless. Replace it with a Bolly fixed gear. Also, the canopy is really weak. I have painted and fiberglassed mine to keep it from cracking. The Tai Ji is fairly light for its size. Mine weights 8lbs 4oz.

I have flown a Swallow with a YS 91FZ. It flies nicely, but it is heavy. . . more than 9lbs. With a YS 110, it should be fine.

I would strongly recommend you consider the Quest from Creek Hobbies. It's only $250 and I understand that it flies very well. I believe it's a 9lb plane too, but the YS 110 should haul it.

Good luck!