Is thdre any way to check for port noise on WinISD? or any formula's i could get to help me? i have 2 12" V-Max's and ive had port noise already on my first box(i think...it sounds lke a flapping noise almost), and i dont want a repeat of that i had small ports though...1.5" i think kinda small, but thats all i had now i have a bigger trunk should i go slot or PVC ports?