Yup, mine still works great, just can't adjust the draw, which was a nice feature of the 306DCA. My main concern is leaking, and I have none, so the i06DCA is doing it's job nicely. The draw is fine for me as well, a bit tighter than what I usually like, but I'm used to it! Will have to try some of the newer i06's and see how they fit.
Side note, sure you all know this, but don't make the mistake I did and attempt to screw it down flush with the bottom piece. That top i06 was REALLY a pain to remove from the upper sleeve ha! Got it all taken care of though, lesson learned...the hard way.