Hi Darran,
I think the Aqua-dapter will work just as well with this adapter attached.
We have intentionally kept it as short as possible while still allowing a good length of the gooseneck to be inserted into it.
When working with a gooseneck, we always recommend that extra care is taken, as there is additional leverage, and therefore stress on the parts, esp the joints, but we're confident that this will cope with the stresses and hopefully it will be very useful to users of these quick-release components.
Paul