No matter how I put fabric on the die I never get a V in the strip cuts using the Go. I guess because it cuts both sides at once?

Me, too. I found that it helped to press a sharp crease in the fabric to minimize 'elbowing' in the center of the cut.

I use a 4 x 36 ruler with a lip and occasionally hold the ruler down the length of the cut. Also check to make certain your table is sturdy because if not you can get curves.