I'm going to build a custom enclosure for my 2 JL 10w3v3s. I have a 23 Jeep Wrangler with the sky one touch top. I currently have the subs in a sealed pre-fab box that has .8 cuft per sub. I am thinking about building a ported enclosure with the subs downfiring with 1.25 cuft per sub. Should I have the slot port also downfiring or rear? This is my first convertible and I didn't realize how much it effected the bass lol. My amp is a Rockford Power T1000 1bdcp, wiring to 4ohms.