Rumble was during a period when I could not lift my regular rig due to back issues. Nothing replaces an F1X or F2B with a good power amp and a Genzler 12" Array cabinet for me. I have been using a GR Bass 12" combo lately for hard to load in or small stage gigs. It only weighs 19 lbs! It does the job admirably.
Yes, outdoor gig when that photo was taken. I often play outdoors for festivals, wineries, street fairs, or some restaurants.
That black Darling is indeed short scale, and has been great for my back. I have a second one in mutant maple in production at the moment, and would love to get it soon because it has the neck dimensions specific for me. Here is a photo of Bob holding it just out of spray.