As explained many time.
Don’t flush, of you wish give water omly. In your last little bit,.but taste tests provided by different sources have shown non flushed and continue feed bud to be tastier
Impossible to Geuss, every strain is different, indicas and sativas also very.
Your close
This then depends on how you like to harvest, wedding cake is an indica hybrid so I would be waiting a while long till your seeing a fair bit of Amber like 40/50% of the tricombs in your lenses show Amber heads.
Ambering up can take a while sometimes.
At least 2 weeks though ide say Mayne 3 to get the right amount of Amber, most people harvest indicas with such little amount of Amber so you’ll see most replies advice against what I’m saying.
I’m no scientist but I’ve done my best to read up on tricomb maturity from expert sources (not just weed growing sites)