@cleight
This issue came up with the iBoard under MyS 1.4 and could be fixed by uncommenting a line which expanded all the variables in the gw constructor.
From:
MyGateway gw(RADIO_CE_PIN, RADIO_SPI_SS_PIN, INCLUSION_MODE_TIME);
to this:
MyGateway gw(RADIO_CE_PIN, RADIO_SPI_SS_PIN, INCLUSION_MODE_TIME, INCLUSION_MODE_PIN, RADIO_RX_LED_PIN, RADIO_TX_LED_PIN, RADIO_ERROR_LED_PIN);
This made the pin changes in the sketch stick. I do not know how it is constructed in MyS 1.5. Perhaps you can change line 11 in GatewayUtil.h to map the inclusion pin from pin 3 to pin 14 and recompile.