I Laid out my BID squares in order and went to town. I could have done 1 big piece but there were some angles I didn't think I could squeeze into and I also didn't want to fight gravity as well. The smaller pieces were a snap to work with and I went with the 1 ply per plans. By the time I was ready for peel ply, the resin was already as thick as honey so I opted out. A 78 degree garage and fast epoxy will do that.