Mile - Hi:
My tank is a 10 oz. The reason my tank is located where it is, is that I was trying to move the CG back as far as possible. I have about an inch or so of foam in front of the tank. I did have to use a dremel on the tank shelf to get the thing to fit properly. I also taped some nylon string to the front of the tank so I could easily remove it if needed.

I cut the cockpit shelf out and the head rest to save every ounce I could. I really like your pilot!

Here in Illinois, I am about 800' above sea level and my 72 has no problem going vertical for as long as I want - I don't know how your altitude will effect your vertical capabilities. I'll be anxious to hear how your SE performs.