That's the reason I LOVE the Dani V2+ so short with an 18650 , the Semovar is a Yard long by comparison.My Danitube is actually a V2(+), not a V3. So far, it's been extraordinary. I love the clean look & feel (same reason I dug the Semovar), and REALLY like the fact that it's short for an 18650. Here is sits between a WAE II and a Provi Classic, all three in 18650 mode.
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I have a Kfl tank [after market kit really just one of the steel rings a bit shorter] that has a slightly smaller tank capacity 3cc rather than 4cc makes for a nice compact unit. [shorter drip tip too]
Must get around to sending the tube back to Germany for repair!