Global Script Variables

Hello All,

Does anyone know of any actual (or practical) limits on the number of Global Script Variables that can or should be used in an application?

I'm reading a number of values out of different BEx queries at start-up to populate a scorecard. I'm planning to assign these values to Global Variables so that I can refer to them elsewhere in the application.

This would be in excess of 100 global variables.

Any thoughts on if this is a sensible approach performance wise or if I should  re-execute a DataSource.getData() statement each time the application needs the requested value?

Thanks

Tim