Try Perry's method to encourage the bees to complete the construction. Otheriwse, they'll start nibbling away the foundation. But don't try to encourage new construction by feeding syrup--you don't want to mix that with honest honey.
Old mother Hubard went to the cupboard to get her poor daughter a dress, when she got there the cupboard was bare, and so was her daughter I guess!
Yes slower honey flow. The bees secret wax when they are forced to hold the nectar in there honey [FONT="]stomach for an extended time, as the flow slows down or stops and the nectar is ripened [/FONT] the volume decreases and the bees move the honey to fill cells and cap them once they have a moisture content under 17%