OP i hope you only paid 240+ for that KW, because that is a v1. Like some have said, the kw v2=v3, v3=v2, and should be using alu-bronze.
I have recently released a kw v2/v3 one i can say for sure that it is a solid quality rep, the material is unlike the v1 (which is actually nice in its own way) and is much more yellowish.
If you ask me which would i go for between zf and kw, I will go for kw since ZF is known for many QC issues.
The new kw nato is also much better btw.