When I first registered here and had a proper look at Heresy, Spyglass etc. I thought to myself: Well, they share the forum, why the hell donīt they put the businesses together?
I really donīt understand why every mildly (or greatly) talented sculptor has to open his own webshop. So much time is wasted on logistics, they all live more or less on the minimum and we, the amateurs, often save up for one or two buys per year only (in order to avoid shipping costs and because of the small catalogue).
I would agree that outsourcing the casting is already a good step. Still I would even go farther:
Letīs for the sake of the argument pretend that Heresy Miniatures and Spyglass are incorporated into Hasslefree Miniatures.
Sally hires at least (!) one extra for packing and shipping. (While they are at it, they create a website that does not look like an example of early 1990s interweb history.

)
Boris, you pay your share for the logistics - and you get royalties for all Heresy Miniatures sold. But other than that, you concentrate on sculpting. Hasslefree will increase sales due to the larger portfolio, Sally has less troubles due to the extra hand they can afford, and everyone is happy.
You could even start to have shared product lines, like "60s Pulp: Agents in Distress", "Muscle Mountains", "Space station XR5" etc.
Kev and Sally went the right way with their White Metal range - that idea should be expanded on.