Charlie, I received my Gloom a few weeks ago and I love it. The tubing on mine was also loose and of poorer quality than any other squonk mod I have. Before I even used the Gloom I swapped tubes.
Before using it I took my Gloom apart to have a look/see at the internals. Their wiring and solder joints are meh at best. I didn't like how exposed the MOSFET was in the Gloom so I made and applied a rubber patch to completely cover, and seal off, the MOSFET. There is no way
juice will come into contact with mine. I am fairly confident that the exposed MOSFET is the reason for "some" autofires I read about.
juice likely managed to work it's way up and onto the MOSFET and/or wiring. Likely a combination of a loose fitting tube and the exposed MOSFET IMO. I also suspect when some who experienced an autofire pulled their bottle they likely squirted juice up into the exposed MOSFET and wiring.
I don't know if you ever took one of yours apart. You can slide the black plastic washer off the squonk pin and looking inside you will clearly see the MOSFET is very exposed. If you pop the two 510 screws you can easily pull the 510 squonk assembly out to look at the wiring. You will see under the fire button all their exposed wiring.
I was very curious to know what the MOSFET actually does in the Gloom so I contacted Ulton. They replied with
"We would recommend Hellfire mod over this gloom mod because of multiple protections and better soldering." They never answered what the Gloom MOSFET actually does but their answer is easy to read between the lines.
I have great confidence in my Gloom with the improvements and modifications.
It is a nice little squonker.
If you are interested I can shoot you some photo's of what I did to upgrade mine. Let me know.