     }
 
     PrimaryRadio.listen(true);
+
+    // DE20170926: Disabled as this is causing problems in REV7RadValve.ino,
+    // and is not TXed over GSM in REV10.
+#if 0
     // Do early 'wake-up' stats transmission if possible
     // when everything else is set up and ready and allowed (TODO-636)
     // including all set-up and inter-wiring of sensors/actuators.

    OTV0P2BASE::serialPrintAndFlush(F(" prog: "));
    OTV0P2BASE::serialPrintAndFlush(progCounter, HEX);
    OTV0P2BASE::serialPrintlnAndFlush();
    OTV0P2BASE::MemoryChecks::forceResetIfStackOverflow();
    OTV0P2BASE::MemoryChecks::resetMinSP();
#else
    if(128 > minsp) { OTV0P2BASE::serialPrintlnAndFlush(F("!SP")); }
    OTV0P2BASE::MemoryChecks::forceResetIfStackOverflow();

        bareStatsTX();
        if(!ss1.changedValue()) { break; }
    }
#endif

    // Start local counters in randomised positions to help avoid inter-unit collisions,
    // eg for mains-powered units starting up together after a power cut,
