Location of Serial#s on some Zeagle products

[MoonWrasse]

I'm trying to register my newly purchased Zeagle gear, but I'm having a problem locating the serial numbers stamped on the gear. The first stage of my new flathead reg's serial number is easy to spot, however the others' are a mystery (and I haven't found it in the docs provided).

Stiletto
VX/VI reg
Envoy octo

Thanks for any help! :diver:

 

[ScottZeagle]

There is no serial # on the BC.

On the second stages, peel back the mouthpiece with your two thumbs. The serial number is stamped on the plastic lip that will be facing you.

I believe it tells you the locations (with pictures) in the manual???

Thanks!!

Scott