twinzer+trailer fin placement?

Just wondering about a few things, modern twinfins like griffins or akila aipas boards have their fins moved further back than mr/pottz style twinfins, right?

 

 

 

6'4 griffin vs. 6'2 MR

 

Regarding twinzers thre is also some variation with the fin placement, here are a few shots of will jobson's version

twinzer_4.jpg twinzer 3 picture by easternbull

Will seems to place his fins closer to the MR style twins than griffins or akilas modern twinfins. What am I getting at? What about making a twinzer with the fins further back like on the above mentioned griffs/akilas? Or what about making a twinzer with jobson's fin set up but adding a small trailer, imagine jobsons fin setup+a trailer with one of these outlines.!?

http://www.markrichardssurfboards.com/boards_retro_1980twin.php

 

Think that would be a "fun"board for more progressive surfing when you or your waves want more than your keel? 6'8-6'10 x 21 x 3 1/8 for frozen gorillas in thick rubber! And throw in a set of halcyon's mentals or jobsons originals.