Brian I have sent you a PM, you asked for pictures, here are a few. 1 sailing a round the island, really close, that is control. 2 The deck the blocks on the main sheet only move as a unit, as the control line is fixed to the bottom block. 3 the hatch removed. Red arrows main sheet control. yellow arrow mizzen sheet, only moves half the distance of the main. both operated by winch under forward hatch. Light blue fore sail sheet, dark blue stay sail sheet. Again less movement, by different positions on the sail arm. Green arrow the rudder servos. yes two one normal, the other increases the rudder area by over half. The rudder consist of 2 outer skins of 3mm ply and a centre plate 1/16th steel pulled out so it looks like a scale rudder out of the water.(don't tell). The drum in the centre of the picture lowers and lifts a 1/16th steel plate. (I have found this unnecessary in practice) The ballast consist of lead chips mixed with cement, no external ballast required. The other photo show my west country schooner with furling square sails, again servo operated. Hope you find this useful. Geoff