I have been using my xhaler with 901s and dripping for a few months now. I recently decided to try some kr 808 cartomizers. I received them in the mail today. I filled one up as per the directions on ecf and screwed it into my xhaler with the 901 fitting on. It fits and fires fine, but the vapor taste and production is terrible. Do I need to buy an adapter to use kr 808s? I tried it on a 901 passthrough and couldn't get a draw on it at all. Thanks in advance for any info.