There is a group of weavers that get together every-other-month to explore a new weave structure or weave with a specific fiber. The method we used to keep track of measuring our warps came up the other day. Someone commented that they took a small bit of tension off their warp when they measured. I had not done that before. So, as I wove along, it came time to measure. The difference from measuring under tension and measuring with a bit of tension taken off the warp was 1/3 inch. That adds up during the course of the project. Please note that when I say I took off some tension, there was still tension on the warp-it was not sagging, just not as taunt as it would be while I was weaving. So, any comments on measuring with tension on the warp or measuring without total tension on the warp?