Never saw the XL either, myself. I've big ears too, and the Spiral Dot L is generally fine for me (which would mean, if it isn't for you, that your problem is, unfortunately, bigger than mine:))...
My main go-to tips are the Sony Hybrids LL and the JVC Spiral Dot L, depending on earphone. On the Titan 1, in particular, the Sony Hybrid LL sounds better, to my ears, than the Spiral Dots
You do know this thread, yes? http://www.head-fi.org/t/697211/big-eared-people-unite
Though I've tried most of those tips, and my ears still prefer, on the whole, either the Sonys or the Spiral Dots, YMMV, you never know;)
The Sony LL's will do it for sure. Will try them ASAP. Thanks alot, didn't know they had LL's : )