Adjustable, rigid scrapers are an option. Lock thes scrapers in rigid position to prevent excessive blade wear when working in light, dry soil. Or, set the scrapers in the self-adjusting position and peel away sticky soil. Either way, these scrapers direct soil and residue backward, rather than up toward the gangs where it can interfere with disking action. Welded steel spools add protection.
Straight standards are massive.
This design directs thrust forces upward, prevents twisting the gang tube when you encounter an obstacle in the field. Each standard clamps against the top and bottom walls of the gang tube. Adjust the gang angles to match your needs. Frames are built to withstand stresses. Gang tubes are 2x3-inch tubular steel.