I got an e-mail this morning from Guitar Center, which made me appreciate my carbon fiber guitars even more! Their special is: a free set of D'addario strings with a set up. Also in the e-mail: "A set up is recommended every 6 months to account for wear, weather, and play"... every 6 months? I do a set up on my guitars, generally after I get them... as in: one and done. The only guitar I've owned that has seen more than one set up is the ES-335 that I've owned for about 55 years. It may be due again.
Hasn't been necessary on any of my CF guitars.