So I SMed 3 extra military academies at the start, along with 3 research facilities, and now I have an actual surplus of geo survey teams, awaiting jump theory to find new worlds to harass. So I am switching from conventional shuttles to Nuclear Thermal, and I figured, "Why not make 10 crew shuttles, instead of 5?" It is only slightly more expensive, since most of the payload is a full sized engineering module anyway.
Since I have a surplus of teams, will there be an speed advantage to having several of them working the same planet? I will still go with the larger shuttle, because there will be some efficiencies in carrying two teams around.