This is the best looking one and the other was already used to make mods. These do have some advantage over the IDA rudders. 
If you forget to put them up when taking the boat out of the water don't worry about it, they will never hit bottom, and if they do they have a 1/4" aluminum plate edge that will cause more damage to the ramp then to the rudder. 
They are also heavy and 1/4" thin so if you leave them down while motoring fast you will not notice it until you execute a turn at high speed that quickly turns into a F-18 4G turn. 
Since they are shorter then Ida rudders you can go in shallower water. 
Now for reference purposes I am 69" and 224lbs on a good day but since it is evening and I just eat a big plate of spaghetti you can add about 5lb to that. Also since I did not marry my sister or first cousin I am wearing a bag over my head so I can be seen with this inbreeded rudder. Here looking at your sister enjoy. 
