Thanks K80

It would make sense to get them on the shelves with plenty of time for the Autumn (Northern Hemispere) hunt season let alone Christmas.

I quizzed them on the regulation method (response below) and they answered half the question. They have explained how the jackscrew adjusts the horizontal dispersion, fair enough.

But, seemed confused about vertical dispersion, since when do your sights affect regulation?

Anyway, I have thanked them for half the answer and tried to spell out my question so they understand I am talking about regulation for vertical dispersion not sighting for elevation, see what happens.

Could one jack screw do both?
Could vertical dispersion just be right and requires not adjustment?

All will be revealed.

AR2201
The sleep of reason breeds monsters

Thank you for your patience. The left barrel is fixed, the right barrel is regulated for windage. To adjust the right barrel so it shoots where the left barrel is pointing, there is a JACK SCREW between the two barrels halfway up from the fore end to the muzzle. If the shooter wants to bring the shot of the right barrel closer to the shot out of the left, he will turn the JACK SCREW clockwise. If the shooter wants to move the shot placement of the right barrel away from the shot placement of the left, the shooter will turn the JACK SCEW counterclockwise. Hence that this firearm is regulated. Shoot left barrel first, then regulate the right barrel accordingly. Remember the JACKSCREW only adjusts windage. The sights adjust elevation.