Should I use T-track or miter slot for the long section parallel

Rockler 36'' Aluminum Miter Track miter slot track Buy NEW Aluminium Alloy T-tracks Slot Miter Track and Miter Bar Slider Table Saw Miter Gauge Rod Woodworking Tools Workbench DIY at Aliexpress for miter slot bar Biscuit slot cutter · Boring cutters · Bull nose · Chamfer · Classic · Classical cove Lock Miter · Louvre and Shutter · Mortising · Multi mould · Multi-bead

miter slot runners Description · This Miter Bar Slider is a useful tool for woodworking · It is a professional woodworking tool for T-tracks and T-slots · Each end of the miter