I don't use Smart Charging, I use the the MG iSmart app, set to switch on at the normal cheap energy rate starting at 11.30pm, but for the equalisation charge I set it for 12 hours and not the normal 5.30am (6 hours) stop time for normal charging.
I'm pretty sure the equalisation took place as the battery was still charging for approx 30 minutes after the charge reached 100% gradually decreasing the charge value over that time, I was able to track it using my Octopus app and my solar inverter app to see where the charge was going.