I'm having a bit opposite of most reviewers' experiences. My Aspire has really given me no real hassles concerning the connector pin, and gives me plumes of vapor above 3.8, but the big mystery is that every juice I put in the tank has an extremely awful taste to it. One tasted like fish oil, one tasted overwhelmingly like sea salt, one was instant charcoal. I followed every tip and trick in the book, but I noticed that your style is "fill and go" (as it generally should be) and that others also aren't putting as much work into the tank as I am, yet they're getting great flavors - even on the very same juices I use. I always try flavors before I buy, so I always know generally what to expect. Yet experiencing things like fish oil, salt, and mechanical tastes are just way off the map, it's crazy!
Have you had any of the Aspire heads taste funky in your stock?