Intelligent aren't you.
Having read your views and opinions in this thread, you are right - I clearly have nothing to learn from you. You on the other hand, strike me as being at the beginning of a long journey and having the intelligence to recognise that fact may well make the route shorter.
I did wonder when you had clearly spent more attention on the lifestyle aspects of your DIY boxes than on proper crossover design. A bit like sticking a full on Halfords body kit on a Focus. you haven't done that as well have you?
Anyway do carry on - most entertaining.