Would you consider vis to be an arcane connection back to the vis source or other vis generated at the site?
I'm thinking of trying to recover some vis that was lost deep in a body of water. (Could we also try to go under the water and manually retrieve it? Yes, but we don't really have an aquam/corpus/aurum specialist handy, and we do have a Rego Vim specialist.)
We have some vis from the site still, and control the site, but we're looking at a rook of Intelligo Vis that would be nice to have back.
We also had a ruling against us at tribunal that prevented us from going to a site for seven years...this spell would let us harvest from that site without violating the ruling.
ReVi 30 Summon the Fruits of the Magic Realm
R:AC T:I D:M
With an arcane connection to a collection of vis in a location, you can summon that vis to you.
I think this has a basis to work, considering ReAq effects where you can draw water from one location to another using some of the initial water-- like the salt generating items discussed earlier.
EDIT: The spell would probably only pull through a pawn at a time, and would require an appropriate container available to have the vis arrive within, but...