Built these last week. Wife took the first one and has not let it go since. We love them. They are our main vape. This version is no glue, none! It is for 801 atys. I used connectors from janty auto switch that failed over time. They work great! Long battery life, great vapor! This unit is serviceable, parts are local and available. It is very durable as well. Ulta small momemtary switch from RS. Battery box from batteryspace. Many thanks to nickostic. Nick you are the best! Currently I am working on usb pass throughs with manual switch. I purchased ABS cigar tubes. Will be using 1/4 audio jack from RS for connector.