Originally Posted by EastAngels2014
but if i cut 21' i wont have enough cause the other half will be 19' so do i just not use that for main? and i don't have a starting clamp. so how do i use the floating clamp as a bridge?
You can always use it for a cross.
Do yourself a favor and get a starting clamp. It will save you a lot of headaches like this.
To use a floating clamp as a bridge. Clamp the end you want to pull, and clamp the scrap string on the other side. You may want to put a knot on the end just in case it slips. Then just cut the knot afterwards.
Though I foresee another problem, you might not have a free floating clamp.