Bob, a very good point well made, which possibly eliminates the idea of using the SLA as it does push the stern down quite a lot anyway, so I'll see if it can be pushed up in the bows.
Shouldn't be too much of a problem because I have rescued Pat's Catamaran from halfway across the lake, bows very high and didn't get any water in.
It is quite a funny sight to watch actually, I ride the Perkasa onto the bows of his boat, between the sponsons, and this pushes the front of his boat under so it doesn't fill up from the back, and it stays locked in this mounted position until we get the boat back, and I just use the rudders on the Perkasa to steer it. It may sound a bit stupid but this is the only way that works, as the other day we tryed pushing it back with something else and it filled up completely and sank, only saved by rudder hitting slipway and having a inner tube in the front of the sponsons!
And doing it with narrow boats sounds great fun
