Previously I think Rob has 'leaked' when the orb was used at a distance from him, so I'd imagine he's about to 'leak' in a room with a man and no women. However, the activation was different to normal so ... well, its not like Rob can give Pym his breast size.
Really enjoying the series and appreciate the regularity of height changes (what was Sydney's original height?). I think you combat one of the disadvantages of poser models (the woodeness of their posture) well by pacing it more slowly and making it look like snapshots as they go about their day.
Sydney is going to need some customised clothing if she's planning to activate that in a room full of men. Or a lot of support in the case of a room full of women.
As Pym is still short, I'd imagine the other devices are similar (maybe weaker or stronger) or at least still failures for Pym- eg female to female height transfer.
Ah, who knows! Will look forward to more