hi Boddi,
nice to meet you.
We have same possibility you can try with the side ellitic fins just 10 cm or more and a elix or mega fins on the central fins you can choose for the elix the 16 or 17 for the mega; the news that you can try with two very little side fins about 8-6 but with minimum area and a new big central fins elix 21,5.for the single fins we think that the future is elix single fins more speed big turns and velocity with more grip
http://www.gasfins.it/blog/index.php
:):):):)