I have the OS 1.20 FS pumper and the YS 1.10 and the YS is just way more power and lighter. As for the 1.20AX and the YS 1.10 go ahead and ask ga what he thinks, he is just starting to get into his YS. I think it took him maybe one flight to make up his mind. Idon't see him ever looking back again.
Ithink he stated he will make you a deal on a good almost new 1.20AX!!!
I'm not real sure about that?? What say you Joe??