Has anyone traveled with Travel Concepts International aka The Serious Traveler? How is the group size? Do they use vans for transportation or mini-buses? Am looking for different small group tour companies that have off-the-beaten track itineraries. Have traveled with Eldertreks, Explore, Exodus, Peregrine, OAT, Road Scholar, Imaginative Traveler and a few others and need some new itineraries to think about. Any recommendations welcome. Thank you!