Branded Drop Shipping with Owner Buy

I often purchase, as Owner, prints for my clients and have them shipped directly to them, with only my branding. AKA drop shipments. This is for certain kinds of pre-paid events, school shots, mini-sessions where self-service by clients is not desired (i.e. they never make an order.)

It is almost there, but SmugMug Pro branded packing slips are included in these shipments (probably triggered because I am logged in.) This is from BayPhoto.

I have enabled Thank You Prints and Stickers, and those are being included which is good (contrary to this "completed" Feedback article, which I commented on,)
but that is not triggering the exclusion of the packing slips. (Contrary to your Help page at http://help.smugmug.com/customer/portal/articles/93350-order-branding which seems to only address client-purchased, aka self-service, purchases. That Help page needs a bit more ifs/buts with respect to Owner purchases.)