Here's the straight dope:
All H&H was originally blended by me, but tinned by C&D. When the volume got to be too large, we had to farm out manufacturing. C&D couldn't source a lot of the tobaccos I used, but Sutliff was willing to, so we moved manufacturing to them. Lane now makes some because they were also willing to use the tobaccos that I do, and since we're now "family", we were asked to move some of the manufacturing to them. Sutliff still makes a number of the blends, including the ones that are pressed, because Lane doesn't have the equipment. Some of the RO Series blends are made by Daughters & Ryan, because Mark has unique tobaccos not available elsewhere. It may seem complicated, but this is the best way to make sure that the integrity of the blends is properly maintained.
Russ