The Antal DV Jammer for 10mm Lines Side Mounting is a valuable option for controlling larger diameter control lines (10mm) on sailboats. Its low-friction design, "Double V-Grip" system for secure line holding, compatibility with D10mm lines, and side-mounting configuration make it a popular choice for sheet control with potentially improved ergonomics, mainsail traveler control lines in some cases, and other control line applications where side-mounted access is beneficial.