I didn't lose my radio stations or, more importantly, my seatbelt alarm delete last time I changed my battery. I wasn't particularly quick about it either.
You're definitely aware of the weight when you're off camber.
I love mine but might get one of the more aerodynamic models in the future. The brick shaped soft tent really eats into my mileage.
I'm pretty sure you're talking about Mineral Creek. I was there a couple of weeks ago and it got my full attention. The Funtreks book rates it as difficult.
ETA https://www.trails.com/tcatalog_trail.aspx?trailid=HGR220-208