Im not the one to give advise in this area, but from everything I've heard these are supposed to be pretty great. They have an array of actions.
You should contact Ron and Kristen at All About The FLy. I believe they deal these blanks and know the product. They'll shoot you straight. Ron is a pretty great rod builder so I would trust his opinion on this.
PT summed it up best in an earlier post on the meiser/kinney/tfo string: "they (CTS) are one of the best and most innovative composite tubing manufacturers and composite engineering firms in the world."
Ron has built a number of CTS blanks - so, feel free to give him a call at the shop (AATF- 360-863-1833) if you have questions about the actions of any of their specific series.