Two poles for lightweight tent

In its review of one person tents, Backpacker Magazine (April 2009) commented that the catch with the Contrail Tarptent (and similar tarp tents) was that the trecking pole used as a support blocks the middle of the entrance. But the entrance is 42" wide at the base and 45" high, so by my reconing the side wall of the entrance is about 50" (1270mm). Treking poles extend to about 55"(1400mm), so if you had two, you could put one on each side of the entrance in a ^ shape, leaving the center clear.