- Stopper balls on spinnaker halyards prevent the shackle from damaging the sheave when fully hoisted, thus resulting in added halyard chafe as it runs around the sheave.
- Stopper balls on jib or genoa halyards may prevent full hoist of sails. Thus I rarely use stopper balls on jib halyards.
- Asymmetrical spinnaker sheet 'pigtails' should be kept short for efficiency. The shorter the 'pigtail' the less the spinnaker clew travels forward in the gybe thus staying full longer and filling on the new gybe sooner.
- Tapers save weight but reduce the life of the line, as exposed core is prone to chafe and UV damage.