What is the best way to orient and store suitcases in the Model X trunk with the 3rd row seats folded down? My suitcases are your typical airline checkin bags: My Samsonites measure: 28.75" x 19.5" x 10" On my last road trip to SF, I was only able to fit 2 suitcases. My smaller RDX can fit 3 and my older 2014 MDX did 4. Doesn't the X have the largest capacity? Perhaps I am just packing inefficiently. What do you recommended?