@MAKO Spearguns That is a good point about the rubber. Rubber is attacked by the ozone in the air. If it is not stretched out, the attack stops at a certain depth when a protective layer builds up. Where the band stretches over the wishbone, however, the attack allows cracks to form that propagate because the protective layer splits open. Since I have 3 pins, the longer bands get cut down to the next pin when they get too bad. I use armorall spray and seal the raw rubber in airtight containers after ziplock bagging them.
Looking at your website there seems to be a wide variety of quality components. Since my gun is homemade it would be mostly the fittings I am interested in.
Thus am still looking for suggestions on the gunline diameter/material. I hear that dyneema is hard to cut, which might help with toothy critters and steel rig legs but I have dive shears that should work. I have a big spool of mono that has sat around for years, just can't bring myself to use it. Also had a look at string trimmer line but mine is triangular with sharp edges.