I love a tight gland as much as the next underwater video housing owner but before you all go off swinging on your wrenches, 2 thoughts...
1. Those little threads strip easily, especially if aluminium is in the equation, and then you'll have a new nightmare. So go easy.
2. Tightening a loctited gland might actually break the loctite, increasing the chances of the gland coming loose in the long run. As the actress said to the bishop, better to give your glands a thorough visual inspection and check them firmly with the fingers.
Completely agree, the only reason to use the spanner is to tighten something that the loctite has given up on. Occasionaly its easier to use a spanner to check, not to crank on the pressure, but to hold the hex head in a positive manner and apply no more torque than you would with your fingers. In fact with a spanner you can apply even less pressure and be more accurate because your not trying to get a good grip with your fingers. Very handy if the hex head is recessed into the housing wall in anyway. A tiny movement in the nut/gland is very visible because of the length of the spanner. It was only a tip.
Dont forget that using loctite is not mandatory for a gland fitting on a housing. Most fittings I've worked with dont have it. They work perfectly fine with out it. I'm more concerned with the O-ring and not the loctite when it comes to prepping a housing.