For the time being, I’d say get one of the major subliminal programs first before deciding to go for it on the Q store. If a person tries out Stark first for example, (if things are as they were before), it will come with both versions, standard and Terminus. They’ll be able to compare how they respond to each. In the same way, buying Mind’s Eye offers a chance to try out the Terminus2 build.
I think your idea is a really good one. To have a kind of simple ‘tester’ subliminal that is available in all three builds. Maybe for $5-$10 USD.