Hello Jim . I push a junket around mostly experimental , I thought I might cut out some of the rope work on the junk and see if it is more efficient . I,m a J. R. member so you will find some Imfo on the boat there plus there,s a bit in issue 61 . My fore sail is open battened and the main is sleeved . my battens are cut about 6 inches short of the mast , reasons they tended to over shoot the masts and cause lock ups when raising sail as I use cars in the tracks this causes a funnel behind the mast up the sail , whether this helps or not I just have not found out yet . I have not tried to attach the battens to cars but I suppose its possible , my yards and booms are on home made lengthened universal jointed cars to spread the loads . To get the sail up I use two halyards ,one for the sail and one on the yard , both halyards are latched before going into the same winch , keeping the yard parallel stops jam ups , using a cunningham and the yard I can tension the sail . Down haul I only use one on head sail , if you take her off the wind , but the yard must be level when it comes down . To drop a batten just drop both halyards at the same time , the sail can be de powered quick by dropping the yard , looks ugly but works . My boat is a bit blunt at the front so a little bit slow to wind ward , pointing up she goes till she stops , broad side she needs about 10 kts , down hill shes fast . . My battens resting no trouble . Because my sails are on cars they take up some area near the masts so they can be used as storm sails when at rest . Junk booms when tacking come around slowely , mine are a little faster , pointy ones are wicket . Yards on true junks need to be a bit stronger than mine maybe because I use two halyards . Work wise junk might be the easy,ist , mine next , pointy things the hardest . Boat shape and sail area help with speed . use the spec for you . I followed a 3 masted cat last year and pointed just as high though a bit slower . I,m 73 single handed and don,t need exercise . all the best .