I run the Aspire Nautilus on a Vamo 6. The Clearomizer is in my opinion excellent, great performance and great taste steam. The only drawback in my opinion is not the positive sprung. There unfortunately sometimes the problem in conjunction with my Vamo 6 that no contact is made. The positive lead can indeed move with a blunt pin outward for me however is not clear why Aspire not realized the positive role model for the Nautilus in mini-suspension design for the model. If that were the case, I would give 5 stars. A pity, because the Clearomizer otherwise would be really great. Recommendation from my side therefore only when the battery carrier used has a spring-loaded contact.