I just traded in my electric so I could save some money to buy a new electric, and I've been practicing on my acoustic now. I'm trying to build up my speed by playing scales and chromatic runs on my acoustic, but does it help my technique on electric?
It's usually more difficult to play on an acoustic, so it will build up your forearm strength if nothing else.
Ya I've kind of noticed that my forearm muscle is getting tired very fast on the acoustic.