Oh yes I do.
1. Crease one short edge and one long edge.
2. Align the short edge & long edge in one corner
3. Clamp along the short edge using a piece of 1/2" plywood (long & about 2" wide) - staple down
4. Take two pieces of plywood and clamp at the other end with three C clamps.
5. 'Bend" and stretch the grill cloth around the corner using the plywood as a 'fulcrum' . Hold with your third & fourth pair of hands
6. Staple down.
7. Clamp along the long, creased edge using a piece of plywood - staple down
8. Take two pieces of plywood and clamp at the other end with three C clamps.
9. 'Bend" and stretch the grill cloth around the corner using the plywood as a 'fulcrum' . Hold with your third & fourth pair of hands again
10. Staple down.
TIP: When all nice & tight, soak Salt & Pepper grill cloth with water and it will shrink even tighter.
With this technique, I can bounce a coin off my grill fronts.