Can I use the side fins that came with my pro wave and just get two more to turn into a quad setup. I weigh 95 kgs and was thinking of getting some Maui Fins Side Fins as shown here http://www.mauifin.com/sup/fins/side-fins/ as the local dealer has some.
You do need a set of quads as the rear fins are smaller and standard fins will not fit. Depending on your age, weight, height and experience, Shapers S7's are for more advanced surfer and are a bit loose. Shapers S9's will give you more control and as you might expect from a larger fin they will not be as loose.
@ skebstebamal its ok. I will just get something locally once I make my mind up :-) Still just getting learning on my pro wave but want to get some quads , just trying to get an idea on what to use