And if we could model everything there would be no need to test. everything would be a one shot build. we would have 20 craig butlers. I rough design for volume and tuning on "paper" then built ,test, and mod. Ive had many successful loud daily and spl builds. All from testing. No luck needed. Luck is builds that hit certain numbers and never get louder.If your knowledge of building and testing out weighs mine please feel free to contribute. Otherwise if your certain computer modeling is the way to go you have expressed it thoroughly and you have no further need to post about it in my thread.