Hi Scott, I have recently become a fan of installing inspection ports in the tank sides. I used 6 inch ports (which allow me access to look for water leaks after Jeff drives it while it is filling with water) and put my ballast in either side when it is needed for the 8 HP class. This keeps the ballast out of the cockpit. The ports are also good for storing you lunch, phone, or extra clothes if you happen to go pleasure boating! I recently ran my kill switch wiring through the side tanks in an effort to keep it dry to avoid shorting out or electrifying the boat (it makes you want to get out of the boat). As mentioned before, reinforce the transom as much as possible, I added 2 extra braces to #999 Kamikaze after my first boat developed a joint failure at the single center brace. Good luck and hope to see you at the races!