I have this tent, and when I camp above timberline in the winter, it gets rocked by wind. Do I not have it guy-ed down correctly? There are obvious places for stakes at all four corners, and a loop up the tent wall half way on the long sides to attach a guy line too. Even setting it up tightly with that configuration, wind is able to pick up the middle of long tent wall and shake the tent more than expected. Suggestions? Seems like there should be one more stake-point on the ground on each side.

Tech Specs:

Material:

[canopy] polyester assault (40D); [membrane/laminate] MemBrain 3L (89% nylon, 11% spandex); [floor] nylon (70D), PU coating (5000mm) 

Canopy:

single wall 

Freestanding:

yes 

Doors:

1 

Number of Vestibules:

1 

Poles:

3 

Pole Material:

DAC NSL Dual Diameter Pole 

Pole Attachment:

clips 

Floor Space:

30 sq ft 

Floor Dimensions:

88 x 50 in 

Interior Height:

42 in 

Vestibule Space:

8 sq ft 

Packed Size:

8 x 20 in 

Seams:

fully taped 

Ventilation:

ceiling vents 

Fast-pitch Option:

no 

Trail Weight:

4 15 oz 

Recommended Use:

alpine climbing, mountaineering, long-distance trekking 

Manufacturer Warranty:

lifetime