What are the differences between Thermage FLX and Thermage CPT? Which treatment offers higher satisfaction?

I am looking into Thermage treatment and am curious about the differences between the two types: Thermage FLX and Thermage CPT. Both are radiofrequency lifting procedures, but I would like to hear actual experiences regarding differences in effectiveness, pain, and duration of results.

If you have received both Thermage FLX and CPT, what differences did you notice, such as improvements in skin elasticity, reduction of fine lines, and skin texture? I am curious whether the FLX, being the latest device, was more satisfying in terms of effectiveness, or if CPT was also sufficiently satisfying.

I would also like to know if there was any difference in pain during the procedure. I am curious whether the energy delivery method or procedure time was different, and if there were any differences in swelling or recovery period.