Huben All Things HUBEN GK1 (air pistol) - Master Thread

Gregor just put out a new video, may answer a few questions.
So based on the video, sounds like the V3+ is ‘old’ or of some last revision; the V3 is ‘new’, has the latest/improved changes to some key components. But half way through the video, he is now experimenting with the V3+. I’m confused…why would he be experimenting with an older revision (the V3+). Or am I missing something here.
 
So based on the video, sounds like the V3+ is ‘old’ or of some last revision; the V3 is ‘new’, has the latest/improved changes to some key components. But half way through the video, he is now experimenting with the V3+. I’m confused…why would he be experimenting with an older revision (the V3+). Or am I missing something here.
The labels on the still pic are mixed up. I hope the left springs/parts are also the other way round. I think the faint copper coloured springs are worse/old and the blacker springs are new/better, or at least maybe that it should be that way. But it could be just the lighting.
 
So based on the video, sounds like the V3+ is ‘old’ or of some last revision; the V3 is ‘new’, has the latest/improved changes to some key components. But half way through the video, he is now experimenting with the V3+. I’m confused…why would he be experimenting with an older revision (the V3+). Or am I missing something here.
Based on the comments from.gregor to other people i think that sketch of the valves in the beginning is inverted...he advises someone in the comments to eventually change the internals of the v3 for the v3+
 
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V3+ indeed is the one with the changes on firing valve and newest version

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