I have only tried the outside pole mods through one drop of snow, and it (snow)did eventually slide off. I have played with old tent poles for an inside mod, which worked great for a "barrel" effect. not so great for snow. waiting to order poles with a 90* peak as well as one at 125* for the main door side. it would have 3 poles as well. the only "complaint" (not really a concern but a wish of luxury) is the height of the sidewalls. I am 6' and don't like my tarp low but to keep the snow from blowing in....
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