Thanks for the great review golantravize, it makes us feel really good that everyone is enjoying their PVHES stems. We spent a lot of time testing and developing different ideas, so it is nice to see it was well worth it with the great performance feedback. Hi Vaporgin, The delivery dates we give are directly from Canada Post/USPS and some we even add a few days so you know the longest it can take. Expedited shipping is usually 3-4 business days and the good news is USPS even delivers on Saturdays. Due to the free trade agreement between Canada and USA, customs is really a non issue until you get into orders of 3000.00+. No worries, we should have one of the most comprehensive selections of high quality borosilicate glass adapters available anywhere. We will be fully stocked in about 2 weeks. https://www.planetvape.ca/14mm-to-14mm-adapters.html https://www.planetvape.ca/18mm-to-18mm-adapters.html https://www.planetvape.ca/14mm-to-18mm-adapters.html https://www.planetvape.ca/24mm-and-larger-adapters.html All of our adapters are properly heat treated to make them extra strong. haha, we love the ingenuity on this forum, great work, careful on the sharp edges until you can get it flame polished. We are not sure, but our understanding of the whole process is that after flame polishing, the stem will be very brittle until it gets properly annealed in the kiln and allowed to cool very very slowly. Glad to hear shipping was fast, we do a few "tricks" to help orders get to their destination as quickly as possible. P.V.