Using fox farms, when to flush, and molasses?

I'm sure this has been asked numerous times, but the search function on this site doesn't seem to be working.

This is my third grow and this time I decided to get the full line of Fox Farms products (Ocean Forest, the liquids and solubles), just to see if I get any better results. It's only my third week and I've only fed them once so I can't say how good or bad the nutes are. I haven't followed the feeding schedule since I opted to just use water for the first two weeks, but from this point on I will be following the schedule (feeding every other water).

My question is when am I supposed to flush? The schedule says to just keep using their nutrients up to the time of harvest, if I understand it correctly. A lot of people say flush two weeks before they're ready. How do you know when a plant is two weeks away from being ready?

Also, what is the flushing procedure? How do you do it? Water every day? How much water? I've heard of "emergency flushing". What is this?

Lastly, I've read a lot of posts where people are saying they're using molasses. I saw the stuff at my local hydro shop so I was thinking about using it during the flushing period. That's when to use it, right? How much do I use and how often do I add it to the water?

Flushing is simple, but first the nutes. Use FF grow big in veg every other watering, and make sure you have a good drainage. When in 12/12 as a rule I do not add any Tiger bloom to my plants the last two weeks but I do use Molases from safeway/albertsons/etc. and I still add cha ching.
When your plant is 2 weeks from harvest the idea is to push all the salts and used nutes out of soil, so pour water into container and watch it come out of bottom (make sure container is up and water freely flows out bottom) once you have a steady stream of water coming out bottom give it 10-15 mins and do it again x2. That will ensure a proper flush.
The last flush (#3) I add Molases 2 tbl spoons per gallon. I use maolases all through my 12/12 to the end.

Emergency flushing to me would be if I see a problem with nute burn. I would start flushing x3. And would stay away from nutes for a week.