Eleonora D'Eredità & Laura Sciarrillo have published an interview with Maurizio Margaglio in the e-zine Winter Sport News. Magaglio, who with his partner, Barbara Fusar-Poli, won Italy's only ice dance Olympic medal and only World Championship in ice dance, discusses his work with Finnish synchro teams, and with ice dancers in Finland, Italy and the USA.
I found his description of the opportunities of choreographing a synchro group very interesting:
With a group of girls you have to do something different: there isn't any more the intimacy of a couple, showing love to each other etc. On the other hand you have a spectacular amplification of every movement: Every little choreographic detail of an arm movement, multiplied by 16 arms becomes a wonderful transition, or even only bending the legs altogether and then start again, those are things which are amplified by the number of skaters who execute them. Moreover, in my opinion, a beautiful aspect of synchro is being able to use abstract ideas. How could it be possible, with an ice dance pair, to describe a clock, for example? You can do that with a synchro team. Do you want to recreate the idea of a gust of wind? With a pair it's impossible, bit with the girls you can do it. You can make them look like as if the wind is moving them, and you get the impression that a gust of wind has passed among them. All of this gives you a huge freedom for your creativity."