I know that this thread is not a review thread. But being in customer service for 27 years I wanted to make a comment. I recieved a call from K3vin this morning. that the batch of nic I ordered from him at Vaperstek wasn't made exactly to his spec. I told him I hadn't had a chance to even try it yet and he promptly told me that he was sending out the right spec today and to keep the old one. I would have probably never known the difference. I also told him of my plans and that I was wanting to get into making juice as a business and he gave me some great advise along with a suggestion of trying nic in a different mix than I ordered. He then told me he would send some of that along complimentary for me to try. First the being proactive and not waiting for a complaint impressed me, but making it right and going above and beyond is truly awesome service. I can't wait until Saturday when I get to do my testing versus what I have been using. If this nicotine is half as good as I have read I think I am going to be a pretty happy vaper. Thank you Kevin for being a role model in how to satisfy a customer.