intouch1:
i disagree a bit. there are good interfaces and less good interfaces.
a small keyboard is harder and less intuitive to use than a full size keyboard.......
paddles are simply better than buttons.....
An advantage of buttons is the +/- on both sides which especially in a series of curves (e.g. hillclimb) is very helpful IMO.
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It's not where you're going, it's how you get there that counts