About Groove Ultra Series Inheritance: Groove is a benchmark product for the combined straight push and rotation linkage track. The first generation Groove and Groove Pro were extremely popular, with a significant premium in the second hand market. This time, the first flagship of the Gambit Knight series, Groove Ultra, retains the classic core gameplay of push pull and rotation linkage, greatly enhances the DIY adjustable attributes, and breaks through the original upper limit of playability. Design Core: Gambit Knight takes the knight in chess as the design inspiration. The knight's movement is not restricted by straight lines, corresponding to the product core of Groove Ultra breaking through the limitations of the first generation and Pro versions and surpassing the classic. It has a high recognition shape and belongs to the annual flagship level linkage slider. Three Core Upgrades Adjustable Damping and Quick Release Structure By tightening or loosening the screws of the horse head patch on the back, the track damping can be controlled, allowing for a free switch between a smooth and light push feel and a tight and segmented feel. Fine tuning can be done without disassembling the entire device. Magnetic Replacement Patches The patches adopt a magnetic design, which is convenient for disassembly and installation. Multiple theme patches of the same series can be freely replaced, easily changing the appearance style. Hidden Dual purpose Paracord Hole Under normal circumstances, the hole is hidden inward, leaving the surface of the fuselage intact without any openings, ensuring a smooth grip without hurting the hand. When the patch is removed and the hole is turned outward, a paracord can be threaded through, meeting both aesthetic and portability needs.