I bought a 10X for only one reason. The 10th Channel. I actually have not used this transmitter much but there are a few items I did not like. I have always used Futaba and my favorite is the 8UAFS. I haven't tried to do so yet but I am told that with the 10X you do not have the option of assigning any function to any switch. On the 8UAFS any function can be assigned to any switch (or knob). On the 10X, the throttle trim is not digital, on the 8UAFS all 4 stick function trims are digital. No one so far has given me a compelling reason for the throttle trim on the 10X to remain a manual slide switch. I don't understand these differences on the 10X. Maybe someone with more experience will jump in and give a reasonable explanation.