RE: digital radios
do you mean just a digital display? If so they just look pretty lol. As far a digital spectrum , once you get one of those you wont go back. Futaba has the fast system which is also 2.4 but I have been having alot of customers have problems with them. Its no where near as good as the spectrum. With the 2.4 you never have to worry about a freq. problem again, no glitches, and it gives you alot more fine tuning adjustments as far as movements with the servo's.