often a mouse is required - simply attach a small weight to the end of a piece of string (the mouse), drop it over the pulley and out of the pocket use this as a draw wire to then pull the larger sash cord through. usually, that means the reservations have been reduced in size. your magic flight launch box will probably be sent with a grinder at the very least, but not the warm, fancy, environmentally friendly wooden one created by magic flight. they tend to run a bit rich if anything. 