Hi all, Graeme Davies has Dotans on his new Mozzy for a couple of months, I sent him an email asking how they were going, I have pasted his reply below as he cannot use the forum due being stuck on dial up connection to net.

"I am pretty happy with the old Dotans, I have not had any problems with the rudders themselves at all.
The main thing you heve to get used to is that they are either UP or DOWN, and there is no in between, so you need to have enought water under you when taking off. When you come in they just ride up automatically. I've never done a surf launch with them so I dont know if that will present any problems.
I do however think that the blades could perhaps have been a fraction longer or able to be raked forward a little more. At the moment the boat has a just a little too much helm, I dont have a hell of a lot of mast rake so I dont reckon thats the cause of it. When you look at the blades they are not kicked under that far and the adjustment which kicks them forward is already on its maximum. This is not helped of course by the forward slope on the transoms which limits the kick under effect anyway. I remember a similar situation on my old boat was remedied by cutting a notch in the blades which helped kick the rudders under a tad, and I also had some 15 degree spacers on the old boat which helped to effectively make the pintle mounting points on the transoms vertical. I must get around to asking the South Africans about this, as you know many of them are using the Dotans.
Apart from that, the up/down mechanism works well and it's just so easy to pop up one rudder when you are going downwind." Graeme.

I checked them out when he got them, up/dowm mechanism is good, I would interested to find out what they weigh, plastic case seemed a bit flexi but the blades are held in place well.
Darryn