Hey Eric, I need some feed backs from you regarding SVD. I just watched GrimmGreen's updated review on SVD. He said the production model has wide
thread pattern, and therefore 18650 configuration has some wiggle (the battery shakes). Have you noticed this? I would sacrifice less turns of the body (wide thread pattern) for solid body. I was soo looking forward to SVD.
I have tried every battery I have, including old trustfires I had laying around, it does not shake.
That said, if you do not re tighten the center tube
it will, so what I am saying is if you unscrew the tube, drop the 18650 in and then just lightly tighten it, it will rattle a bit, if it does then just give it another turn, it won't any longer.
It does indeed have a wide thread pattern and if you shake it vigorously even with the tube tightened it will slightly rattle even with the battery installed tight,
but you have to make it rattle by shaking it and who shakes their PV's vigorously?
It does not rattle or thump under normal use.
so, my advice is to drop the battery in, but the base on, then tighten the unit, it will not rattle unless you make it rattle.
I did not have a production model so I cannot say if they changed it or not?