Trusty has a drop down menu to choose the movement you want. They started doing that with V5. Amazingly, the TD menu even says the VR is RECOMMENDED.
Trusty doesn't even list a V5 Jubilee anymore but the oyster V5 still has the movement choice menu.
Https://trustytimewatch.io/index.php...ducts_id=23927
Both V6 versions are available with either movement through the menu.
https://trustytimewatch.io/index.php...ort=20a&page=1
The SA3285 first appeared at V4. The whole reason for a V5 (in the Pepsi) was to offer the VR movement choice because sales were poor. The version numbers V4 - V6 across all GMF GMTs have negligible changes aside from their movement shuffling (the GMF Batman did get a new insert at V5).
The two movements are interchangeable in the case and take the same handset and datewheel. The difference is in quality and cost. The Pepsi is available with Jubilee and VR3186. If a customer specifically asks for those two features, that's what he should get regardless of what version number the factory or the TD says it is.
That response from Eric at Geektime is proof that neither the factory nor the dealer can keep it straight or get it right. And the customer gets screwed in the end.
The real issue here is that GMF either bought or is under contract to purchase a huge number of inferior, poorly selling movements and has come up with convoluted ways to force their sales. This includes using them in their pseudonym factory JDF watches.