Las Vegas Sun – Slotzilla’s downtown invasion is nigh. No one is saying exactly when it will open, but project managers and engineers are this week testing 175-pound dummies on each of the four lower lines of Slotzilla, the Disney-esque zipline attraction at the Fremont Street Experience. Lonnie Reed, principal of Themed Development Management LLC, out of Simi Valley, Calif., categorized the ride’s testing as some of the most stringent he’s seen in 47 years in the theme park business. But with good reason. “We’re building in the safest city, the safest county in the world with the most stringent…