FLM makes several sizes of ball heads in the FT series, handling loads from 20kg to 60kg while maintaining a small profile and low weight.
What makes the FT series unique is the tilt lock, which will render the ball head capable of 2D-only movement, front to back, and at any angle you choose to set.
It also features a very interesting friction memory lock function and dampened panning.

I will be uploading a video tomorrow on the FLM Canada website explaining some of the unique features of the FT-series heads.