Which one? They have had 10, 3 of whom are male. The one I met at a meet and greet was Mark Wood, a Julliard guy. I saw them perform 4 times and all 4 times happened to be during his 9 years with the troupe so he is the only one I ever saw with them. I CAN say that no matter who they use it follows that it is an outstanding player. He also owns Wood Violins. Bring your checkbook AND your credit cards... They start at about $2500 and as always, when you add "more" the price goes up. They make 4, 5, 6 and 7 string instruments, both fitted with electronics and without. He played mainly a gorgeous blue violin with a wireless transmitter built into the underside every time I saw him. During the meet and greet I said that I had seen the transmitter built into the body and asked if that was strictly an audio transmitter or if he was sending MIDI out to modules. And he smiled and said "Nobody has EVER asked me that. You must be a player yourself." And my reply, always the wise guy, was, "No. YOU play music. I play AT music."
If it was him that you had play, you may see that he looks a lot like Steve Vai. His wife is Laura Kaye, a great singer singer and a drop dead gorgeous model type who also runs the Electrify Your Symphony program with Mark, and in their spare time (LOL!) they run music camps. Quite a career package between the two of them.
Electrify Your Symphony web page