The low operating temperatures of our 45-sized motors made them a prime candidate for the inclusion in scale builds, but there were quite a lot of mechancs on the market (incl. most Roban models built around the HSM-800, that wouldn't fit a can of that width.
Therefore, when creating the initial Scale Collection back in 2018/2019, we added a dedicated Scale Collection model of the 4035HS to the lineup, adjusted the mounting hole pattern to 4xM4(30) to allow for the mounting of the HSM-800's tripod/bridge-shaped counterbearing support and it soon became the default motor for a lot of Scale applications and Roban kits.