I’m about 50/50 at clearing in advance vs. clearing at the gate. And by in advance, I mean at booking. I’ve never had any movement on them between booking and the gate. Mine have all either cleared at booking or gone to the gate. This is true in a mix of both TATL and TPAC. I’ve never tried them on deep South America or Africa as my travels thus far haven’t taken me to those places since the introduction of GUCs.