I am learning the power chords with Lisa. 2 things. 1. She teaches these lessons on an electric which seems like a longer neck than my zager parlor guitar. When she teaches A5 and goes to E5 at the 12th fret, it seems impossible to wrap my fingers around (feels like my hand has to claw around). Very akward positioning. Any tips?

2. I find I get a lot of "twanging" on my strums with these chords? No matter how much I fidget with finger placement, i'm getting the string twang. txs :)