Script i's are awesome speakers....
Welcome to the ML Club!
I concidered using Cinema i's as surrounds, for a while... I like the combination of speakers, used in the, Cinema i's hybird design. My only problem was the shape, the concave curve of the Cinema i, electrostatic pannel. IMHO, the concave curve of the electrostatic pannel focuses the Cinema i's sound, causing a smaller sweet spot. I love ML's, curvaliner (convex) designs, which, I believe is true for all of ML other speakers in their product line. ML's other speaker's, electrostatic pannels convex's out, disbursing the sound waves out in a 30 degree angle, causing a larger sweet spot. Please don't get me wrong, I think the Cinema i, is a terrific ML speaker. I just wanted another sound, for my HT and my ears... So, for my system (my ears), I choose the Script i's and I am extremely pleased, with the Script i's performace as surrounds. So much so, I plan to purchase another pair as rears, in the next year or two. I am striving to complete an all ML, 7.1 speaker system in the next five years. I have a dream and it is Martin Logan centered dream. To accumulate an all ML 7.1 system, before I retire...
Ultimatly, "trust your ears", go with what sounds good to you. It's your HT. Your system, and your sound... Good luck.