What is the current status on canceling part of a front end DH? Specifically, the pairing dh's to SFO, lays over 24 hrs then dh's to HKG. If you js to SFO, can you keep the second dh as scheduled, and if so, can you perform your final dev check in in sfo, keep your sched gnd trans in sfo and hkg, and be protected from then on to hkg?

I've read the contract, but would like some 1st hand experience. Thanks.....