hey there: This is what i found from another thread on here hope this helps.
Yes, Srixon contract ended and he moved to Nickent. He was the first player to win with a Nickent club on the PGA tour with a genex hybrid on 2005, so he always had a good relationship with Nickent.
He is playing a Superquad driver since he still has a TM contract for driver. He is using Nickent irons and hybrid along with hat and bag deal.