Suspension mounting system for Flex series stringing machines:

Six-point mounting system provides 10-point maximum supports and eliminates any racquet distortion. Micro-adjustable Head and throat mounting posts: could move in and out without any adapter. 4 individually adjustable side-support arms (heavy-duty) Padded K-shaped shoulder supports Padded head and throat mounting posts secure any frame (including deep V-shaped throats), no cosmetic damage to any frame.

Which stringing machines have this suspension mounting system?