I have a 2006 Sailfish 282 and would like to install swivel rod holders to catch Blue fin Tuna. I'm thinking of Lee's 0 degree holder but am unsure of the depth that I should use. I have that 10.5" is not enough and that I should use 13 to 14" depth holders. Does any body have any experience or recommendations on what to install and where? I have seen some of the posts but from what I have read so far, most of the installs are angled to some degree (i.e. 15 to 30 degree). I'm looking to fight the fish in the holder and also do I need to reinforce the holder with a backing plate to ensure enough strength. Any help would be appreciated.