I did think of ways to have alternative strumming, but there's something hilarious about it just mashing the strum button as fast as it can. And since the solenoid was able to handle it, I kept it as is :)
That's how I used to play. For some reason strumming in both directions really threw my timing off. Damn did that hurt my arm for fast sections though (if it got too painful I would change to strumming both ways simply because the alternative of slowing down would end up with me missing more notes).
I'm not sure it is physically possible for a human to strum only one direction on some of those songs on 'expert'. Our muscles just don't twitch that fast more than a few times in a row.
Yes but if you miss a single note you end up with a long chain of missed notes. The hammer ons are only really useful for the really fast sections where you can't physically strum fast enough for that section.