First off, congrats on your boat! I've enjoyed the heck out of mine.
I have a 2005 w/ yammi f150, 60 gal tank and dual batts in the aft lockers. If it's full of fuel I get a little (maybe 1 inch or less) when I go to the rear, or have the bait well full. Being in Florida, having wet feet is no issue. You can check your flappers on the outside of the transom, and make sure they are flexible and clean. If it is a real problem, you can install ball scuppers which some people say help a lot.
Here is a thread about your boat which might be interesting to you:
http://www.thehulltruth.com/boating-...ape-186-a.html
Ball Scuppers:
http://www.cabelas.com/prod-1/0031985017564a.shtml
I also installed smart tabs and would recommend them.