OK, so I have to place another order for cartos. Here's the thing: I can't find a way to clean my Turbos that really works. I refill about 10 times with liquid from TastyVapor. By the 7th or 8th time, I have to draw really hard. Every time I clean the turbos, one of two things happens: (1) They no longer vape (clean by boiling) or (2) they're still hard to draw and don't taste good (cleaned by repeated vodka and then hot water rinses). Is there a good way to clean these to make them reusable? I like the Turbos - they're my favorite of the cartos I've tried. However, the cleaning problem has not happened with the other cartos. Advice? Thoughts? Successful cleaning methods? Do Turbos not play well with some TV juices?