I just put my primer paint coat on my cabinets for the 281s I got for Xmas! Im really excited to have em. I got a LCC too just not ready cause the xover is missing some pieces. Anyway, I was going to cut the center tube for the 3"ID flared kit I got from PE. Its identical to the ones Adire sells.What is the center tube length supposed to be? IIRC, it was a 2.5" length center tube. Is this correct? Also, tonight I dont have any stuffing material, will they be okay without it for 2night? Im not gonna be putting any super high SPLs. Just regular listening levels.