- plumb lock not just at stream ends (need twists too)
- plumb lock not just at stream ends (need twists too)

openss7/openss7,openss7/openss7,kerr-huang/openss7,0x7678/openss7,kerr-huang/openss7,openss7/openss7,0x7678/openss7,openss7/openss7,0x7678/openss7,openss7/openss7,kerr-huang/openss7,kerr-huang/openss7,kerr-huang/openss7,0x7678/openss7,kerr-huang/openss7,0x7678/openss7,0x7678/openss7,openss7/openss7,0x7678/openss7,kerr-huang/openss7,openss7/openss7,kerr-huang/openss7,openss7/openss7,0x7678/openss7