I've had TERRIBLE luck with the Chinese orange wire ematches when used as deployment charges. 4 batches, used almost 200 myself. 2% failure rate upon initial continuity screening, and a 5% failure rate in flight. 8% failure overall. Falls right in line with what other folks have told me about their experiences with them, so I ONLY use them for ground testing where a failure isn't such a big deal.
YES, the orange ones that failed in flight were good on the bench and good on flight electronics power up......never fired. All but one never fired even upon post crash testing..... Flight electronics have been RRC2+, RRC3, EggTimer products, and a StratoLogger CF, all with properly sized lipo batteries.
Since the recovery phase is the most critical, I switched back to MJG and haven't had a recovery mishap since.
YMMV