I don't know. Some of the other members talked about doing an acoustic show someday and I was just sticking it out giving it a try before just saying no. It really does help with finger strength though after going from acoustic back to electric. It makes it feel easy.1) If you rock those songs as hard as you can on an acoustic, they'll even be more bad-asserer when you switch back to electric.
2) Why are you running acoustic anyway? Does your amp shut down if the drummer doesn't show up?