Ron and Tom, I recently saw in a post that you switched to thicker endcaps on all of the sub baffles of all svs subs. How recent was the switch? I just got my 20-39 yesterday and upon reading a post or two and looking at the baffle of where the sub connects to the rest of the tub, it doesnt look near 1.5" or even 3/4" thick. Am I missing something or is that just a lip? and its actually thicker than I think?