A better strategy is to identify a hair-on-fire use case — someone who needs a problem fixed so badly that they are willing to overlook the inevitable glitches. They will help you identify shortcomings early and correct them. Once you get things ironed out, you can begin to scale for more ordinary use cases.
Personas don’t work as generalizations; they need specific context. This is because personas aren’t meant for overall uses — they’re meant for ideation and designing solutions within a specific scope that your organization is concerned with this month or quarter.