RE: Tai Ji, Zen or Swallow?
Hello Alfredo,
I have the Zen 90 and in my opinion it fly’s very well.
I have a YS 91FZ and it has plenty of vertical. ( currently flying the advance sequence )
With the YS 110 it will fly even better because of the power increase with the YS 110.
I think the power difference between these two engine is about 25 %.
Hope this help you decide,