Hi Charles.
Another possible method for solving your problem might be orienting your solution to be a state machine that uses event structures. This type of solution is pretty efficient for the problem you have. You can formulate your problem like a flowchart and then get going on the programming part. I found some whitepapers at ni.com that might come in handy for you.
Using a State Machine (Event Driven) Architecture
http://www.ni.com/white-paper/2926/en/
Tutorial: State Machines
http://www.ni.com/white-paper/7595/en/
Exercise: State Machines
http://www.ni.com/white-paper/7604/en/
Application Design Patterns: State Machines
http://www.ni.com/white-paper/3024/en/
Module 7: State Machines
http://www.ni.com/white-paper/7532/en/
And an example of a VI with a GUI that uses a event structure driven state machine.
State Machine with UI and User Event structures
http://www.ni.com/example/27941/en/
Hope you find all that information useful.
Fabian.
Fabián M.
Internal Sales Engineer
National Instruments
