measurements for the Quad fin set up

Creating my first Quad set up on a board that is

6.2 x 20 x 2.75. I went through and searched on this and found a lot of info, almost too much. Can anyone give me the starting point or a good all-around measurement set up to start with. I will be using lokbox fin system.

Thanks in advance!

http://www.swaylocks.com/forum/gforum.cgi?post=252447;search_string=fin%20templates%20for%20a%20quad%20fish;#252447