Ok, my garage has a 10' walls with 16" OC studs and I have drywall that is 4x12'. Is it better to hang the drywall horizontal or veritcal? Vertical I have to cut 2' off and only one vertical seam. Horizontal, I don't cut any off the sheet (other than the piece to fill in the 2' void), but have two seams horizontal? Advice? Thanks.