Thanks for the feedback guys. Don1980, I do know that calculation but I haven't used it since, oh, I'm not gonna say... but it's been a while! <grin> But yes, I think I have hi from Perry's. I think I'm good here.
Latexman, as always you are very helpful, thank you for taking the time out of your schedule to help me with my questions.
It appears there's an opportunity within this organization to build something that will help other engineers in the future, and at least automate things bit for repeated calculations. Once I build this, is this forum an appropriate place to post and ask for validation and/or review? Or would that be inappropriate?