Don't forget, you have also invited a Structural Engineer. :) I agree with your comments about Engineers (Imagine that) and it is good to get some respect for a change instead of all the blame from the Lawyers. Your closing does need a lot of work especially since this is suppose to be more of a sales pitch. In our society today if someone decides they want to be offended today they will find a way to be offended. Since you want to reach as many people as possible and your closing statement is what they will remember this definately needs some work. I don't think I will have enough time this weekend to work on it but I am sure someone will. If not I will try to make time next week. Just some tips.. 1. Fewer Biblical references - Some people will start zoning out and miss the rest of your statement. Yes it had a lot to do with the environment but only minimal impact on your project. 2. Product placement - You only mentioned the prject once in the entire closing statement. Make this a conclusion and remind the "viewers" just what they have been watching this for and why your idea is a better solution. 3. Just remember High School English class (if you can, It's only been 12 years for me and I have trouble at times)...Introduction - Tell them what you are going to show them...Conclusion/Closing - Tell them what you showed them. I think if you keep these things in perspective you will do fine.