Groz-Beckert Long-arm Needles are specifically made for multi-directional use, which is exactly what long-arm machines need.
Multi-directional design means more accurate stitching while moving the machine in any direction. Extra strength allows maximum flexibility and bending. The deep scarf prevents skipped stitches, less puckering, and less thread breakage. (The 'MR' style designates the needle as Multi-directional, also called a Specialty Application Needle or SAN)
About the point of Groz-Beckert Needles: FFG is a considered a ""light ball"" and not a regular ball point. FFG is suitable for woven cotton fabrics. Groz-Beckert makes only FFG points in the titanium-coated SAN 11 needles. R point needles are considered 'rounded sharps' and is also suitable for woven fabrics.
Currently, the R point is not available with titanium-coating in the preferred SAN 11 style.