s110 advertising best practices?

[kirkus]

Different examples for s110 use different methods to configure advertising, sd_ble_gap_adv_start() and ble_advertising_init(). What is the guidance for choosing between the softdevice library advertising features vs. the BLE advertising module?

[wlgrd]

I guess this module came with SDK 7 or 8, and not all examples has been updated with it. Also, the module only supports connectable BLE advertisements, so for e.g. beacons, this module should not be used.