Fiber splicing make things complicated and expensive. Putting a twist in the cable can stress the fibers too. This will put a twist in the cable for every turn on the spool! Never twist the fiber cable. These will harm the fibers, maybe immediately, maybe not for a few years, but you will harm them and the cable must be removed and thrown away! Fiber is stronger than steel when you pull it straight, but it breaks easily when bent too tightly. Know and observe the maximum recommended load rating of the cable.
If possible, use an automated puller with tension control or at least a breakaway pulling eye. On really long runs, pull from the middle out to both ends.
On long runs, use proper lubricants and make sure they are compatible with the cable jacket. You should pull on the fiber cable strength members only! Fiber optic cables have Kevlar aramid yarn or a fiberglass rod as their strength member.
