Maximum Compression Ratio

First I would like to thank all of you for your reply I really appreciate it. The reason for this post is exactly to have a basic understanding (or warning) from people with knowledge in order to make an educated decision as to where to go with the buildup, which is what I always do before I start a project. I do not intend to point the finger at nobody for my mistake since I will make the final decision on what will go in. That being said I got answers and food for though to my question, AJ thanks for the long post. Again thanks everybody.

Robert