I've got a real monster of a Custom Angel LCD now (sorry I know it's not a Diablo marker but I'm making a point so please hear me out), but my trusty T3 is still in the bag, always with me to the field. Always.
Once, my Angel had a problem with the trigger jamming, and the T3 saved the day.
T3 - Still the King.
Roc-pile, If you don't get your T3 to work properly, send me an e-mail and I'll make it work for you. What I don't know about the T3 isn't worth knowing.