Will be flushing the coco plants soon and was wond...

I would actually recommend doing the molasses water , when flushing a plant people often forget that your removing everything from your growing medium but the plant still needs abit of stuff while it finishes up , by adding the molasses your giving your plants organic raw sugars that they will need in their final days of growth while removing any "chemical" based nutrients you have used during your grow . Anything organic never really needs to be flushed cause its organic so in your case adding molasses to your mix for its final weeks of growth will benefit you :) it will make your buds more frosty as well as add a little bit more weight ! I hope information helps you on your journey ! -Happy Growing!