I've never been able to get full multi's to work for me. They were always too mushy, but full X1 is quite nice. Much crisper than NRG and nice power. X1 mains with CF crosses is fantastic but it breaks way too soon. I would think it would work well with this 18X20 pattern.
I think someone called the cops because you wouldn't stop screaming "look at the size of it". R2473