I've been working with another shop, and they've built some three π subs for me. They did a great job, and I was really impressed. I'm going to try them on some other cabinets next. Some take special jigs that Brad made, and I expect the new shop willl want to do something similar. Once I think they're comfortable with all my loudspeakers, I'll start taking orders for finished boxes and midhorn flatpack kits again.