Once you really know your plants and the fertilizers you're using , Feed (F), Water (W), F, W usually works very well. But, take into consideration that during flowering, this is feeding the plants all that they can handle at each feeding, even burning them slightly. If you aren't feeding at maximum capacity then you can probably feed more often, like F, F, W, F, F, W. Because you're giving them less at each feeding here than when watering every other time, they can still end up at about the same nutrient levels.
The question may come up at this point, why water every other time instead of more often when the plants get the same amounts of food? The biggest reason, at very least for organic tea-makers, is having more work to do. The less often we have to mix fertilizers, the better. That's more than half of our work, feeding the plants. Giving them pure water rinses away some old crap that's in the soil & coating the roots, which can become toxic and/or block air to the roots. It also reuses ferts put into the soil the last feeding.
Imho it's best to water with pure H2O as often as possible, as long as you're getting all the nutrients to the plants that they can handle. For flowering, at least. Vegging plants don't need as much food for obvious reasons.