Ok ....well rudders are installed
Points noticed from start of project:
Rudders are solid material similar to marineboard
New rudders weigh in at about 16.2 lbs each----old rudders are about 10.5 lbs each
larger but not longer The foil shaped area seems to be thicker
They float
I went out today for about an hour and they do seem to be a little more efficient and "smoother" feel, I can not say it feels drastically different
(my Musclehead was a definate noticeable improvement on first sail)
It did seem to point a LITTLE higher but not signifigantly
They did seem to "bite" a little more when a gust hit and did not round up as easily
I think this was a worthwhile install but may take a few more trips in different conditions to evaluate fully

Side by side 1
http://i151.photobucket.com/albums/s152 ... 2_0009.jpg
Side by side 2
http://i151.photobucket.com/albums/s152 ... 2_0005.jpg
Both sides of rudders
http://i151.photobucket.com/albums/s152 ... 2_0001.jpg
http://i151.photobucket.com/albums/s152 ... 2_0002.jpg