>>1. When a form is closed by the user we hide it and reuse it later. This is absolutely the quickest way we have found to "open" a form. However, if we were to open all forms and hide them before giving the user access to the program, it would take too long for the user to start the application.
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>Is this the type of app that the user is likely to open and close many times during the day?

Very much so...