Lastly...
I enjoy fixing these humis. It's a pain in the butt, though. It takes a lot of time, tons of tools, and a good amout of materials. If I had to price out a humi fix, it'd be at least a hundred bucks with all the shipping involved, and all the time and materials.
Reason I mention this is that normally a guy can find a well built handmade humi for a little more than what this one and a repair would cost.
Keep that in mind when you're shopping.
The water test is definitive. I've been hearing about the "woosh test" and "dollar bill" test for as long as I've been around the boards. It made no sense the first time I heard it, nor the last time. I can drill a half inch hole in a humidor lid and it'll woosh all day long. The dollar bill would be helpful if I crumpled it up and jammed it in the 1/2" hole I just drilled.
Now, conversely, if it's tough to open your humi and it sucks when you open it, that's a good seal. This thing is a pain to open now. That's what we're after.
The flashlight test, not a bad idea. The only problem is that most humidors are made with a lip around the main seal that will hide the beam of light well enough to make it impossible to seal. The flashlight test would work AWESOME for a winador seal.
There's another thought...
You wouldn't think a winador seal would leak. They do. I've fixed two doors already and one of the brothers here just fixed his. The doors sometimes need adjusted so the door seal seats properly.
All humidors rely on being set on a nice, hard, uniform, level surface. That's a big help in avoiding problems. Keeping them out of temperature extremes should be obvious, too. By a window or on top of a fridge is an awful place for a desktop.
Okay, I'm done. I imagine I've pissed off the whole world for cutting on the woosh test. I mean no disrespect whatsoever. I could write a 100 page thesis on all the reasons it's not definitive, but I'm not all that interested. I just want you guys to be able to fix your humis when they're leaky, and the woosh test and dollar bill test aren't going to help. I will give the woosh test one credit though, if your humi doesn't woosh at all, you might have lost your lid, or the glass fell all the way out.
I have pics of a couple more humi fixes, I'll try to do a Fixing a glass topped Humidor II and III, as well as a "Fixing a plain old humi" thread as time allows.
I sure hope this helps!!!