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I always flush the buffer, read 10000 chars with 1ms timeout and then send my command. I also make sure that my target is not set to echo the command. (or if it does, I deal with it explicitly). This has worked well for me in a large system with 100s of ports for many years.

Don't you mean "Beautifully Admirable Sadistic Tendencies And Radical Diatribes"?

For the Discovery Channel Telescope software, we make extensive use of libraries and classes. We never have this issue when editing classes. Perhaps what helps make this possible is 1. Programming to an interface, not an implementation: Abstract classes with pure virtual methods separate almost every call layer. 2. For each software component we do development work within several small lvprojs (with few dependencies), then only one large project from which we do builds but typically no development work. 3. Architect to avoid overly-complicated dependencies.

Making excellent use of LabVIEWs x-platform capabilities then