Well, I am running big pots, not sure on the gallon size. but the top 3 ish inches are fully dried out. and its been 3 days since watering. when i dip my fingers in there all nice like, its moist, but not wet. bout the same if not dryer than fresh out the bag.
Sounds, and looks, like you should be fine for another couple of days yet. It's best to forget how the soil originally felt in the bag, as this factor can vary wildly depending on type of soil, where it was stored etc.
Since those plants are small in comparison to the pots, you will not have to water as often, as they will only have roots in part of the soil area. As they fill the pots more, you will have to water more regularly.
You should allow the medium to dry out fairly well before watering. This encourages quicker root growth, and also ensures that the roots get access to oxygen. It takes far longer to kill a plants from underwatering than it does from overwatering. It's like the difference between suffocation and starvation for humans.
Don't water on a set schedule. Water based on the weight of the pot and/or the feel of the top few inches of soil, which should be dry, not moist. Water thoroughly until there is some run-off from the drainage holes, then don't water again until it needs it. This is known as a wet-dry cycle.
Overwatering has many risks that can mess your plant up, including root diseases, mold/fungus problems, infestations of various bugs etc. Underwatering, whilst stressful to the plant, has far fewer problems associated with it, and the plant usually recovers quickly. If ever in doubt, wait one more day.