This is a comparison chart made by Rob_s, and it has been posted with the permission of Rob_s. The chart is of the info outlined in the Technical Data Package, and shows what these manufacturers adhere to out of that outline. This is just to show you what is done, and what is not done, and what you are getting for your money. If Rob would like, I open the forum to to him, and we are inviting him to come visit. Thanks for the chart Rob!