What are the benefits of these polester fins that come with my new starboard quad.l thought G.10 composite fins would be the go.

K4 for a the best after markets going around and they are made of recycle wheelie bins.

cheap too...

good flex

Mark _australia said...
G10 - better at everything, particularly stronger

Polyester / glass - still damn good, we didn't know any different for 20yrs plus..... but can be a little more flexy so may not suit bigger guys

K4 is just too flexy I reckon.

That's my concern being a fuller built guy (110 k.g.).I think l need a more stiffer fin not so much the side fins as l mainly sail in port tack conditons with a fuller sail l have tried the fins supplied & finding they are way to flexy .

4 plastic fins are sooo much lighter than 4 g10 fins . Almost half a kg on bigger sizes .. I found the lighter tail noticeable on the water .. but the drive does lack a bit I agree

The Rockets are a lot stiffer and a bit thicker+ more upright offering a lot more lift.
In medium/side-on conditions I use them as back and fronts, when its sideshore to side-off I prefer the Ezzy Asy 2 degree in the front and stubby,s in the backbut those conditions unfortunate are pretty rare over here.
If you are a big guy, these one are imo the way to go.