I tried a dual 26/32 alien and it shorted on the chimney no matter how close I kept the coil to the posts.
The deck is on the small side. On just a simple spaced 26 gauge Ti dual build I could only fit 7/6 wraps at 2.5 mm inner diameter. Looking down from the top of the chimney, can see that even that is tight. The Crius vapes as well as any, but much prefer building on my Cthulhu V2 or Aromamizer. The tank on the Crius is on the small side also, just under 4 ml while I can get 5 ml in the Cthulhu and almost 6ml in the Aromamizer.
Right now, for me, the Aromamizer and Cthulhu are tied for first with the Crius a respectable third...