I got my light and the spring bypass changed to double springs. I think the small ones are berilyum-coppers because of the color.
It puts out 18300 Zozz lumens with 4 fully charged LG HG2 at start.
Very nice, that is what I was hoping they would do. Much better then the bypasses they were using. These are simpler and much more reliable for production.
For production it is safe and good and the 18300 lumens is brutal but as a modder I want the max.
So I removed the little spring inside and done 18 AWG wire bypass.
Also added more solder to spring base. And I saw that the mark on battery contact board was only a small dot which is the spring end. I bented down the spring end a little and after that I see a circle mark so the spring contacts even and a much bigger area.