The shrouds should be tight. I have seen people uses 2 links on the forestay. When you raise the mast, attach the forestay cable to the top adjuster but the fasten the jib to the lower one. When you raise the jib, tighten it until the shrouds are tight. The forestay cable will be very loose. Fasten a bunge cord to pull the upper adjuster forward and down to put tension on that cable. This is done to keep the loose cable from rubbing on the jib. The small pulley in the jib halyard is there to allow you to get some mechanical advantage to tighten the jib.

Howard