Fin upgrade??

[sleek 1]

Looking at my first upgrade from a plastic to composite.
Here in nz a set of RUKU blades only = $350 which is ok i reckon.Dive R's about $465.
I like the look of the ruku's and are the cheaper option , they look like they will do the job but i want a fin that will handle abuse (shore diving) and in the rocks getting crays n paua.
Is the Ruku the fin im after ,or is there a affordable other option?
Will i gain in depth-bottom time as ive been told they will give me more propulsion for less effort??

 

[hteas]

There are differences in opinions on the increase. DAve Mullins did some tests and decided that plastic fins, if the right flexibility, were just as good as carbon
http://forums.deeperblue.com/general-freediving/75390-cheap-fins-expensive.html
Personally, I prefer carbon or fiberglass because I have to think less about using them. My Imersion E-greens require me to think about how hard to kick, and the fancy fins just seem to do what I want. It's a mental thing, but increases the fun of the dive, even if it doesn't increase the efficiency.

 

[mishu1984]

Im currently asking myself the same thing. im in contact with mike from oceanhunter.co.nz and he says that:
"Both products perform very well in the water..I have not heard a bad thing about any of them. Both have good warrenties and from what I know none have had any faults that I know about..I know this is not helping much but I feel you wont go wrong with either. Ruku seems to be a bit cheaper, but mostly due to freight and exchange rates, as we import it from Australia"