Stop watering on a schedule and start watering on a measurement. The measurement is your finger.
Push a finger into the soil to the second knuckle. Damp at that depth, do not water. Dry, water. That is the whole method and it is more reliable than any schedule, because it accounts for the weather, the soil and the plant all at once.
Why your evening habit is producing mixed results:
Wilting in the afternoon is not always thirst. Large-leaved plants like courgettes wilt in strong sun and recover by evening regardless of soil moisture. Watering in response to that is how people overwater. Check them in the morning, wilted at seven in the morning is genuinely dry.
Split tomatoes are a watering-consistency symptom, not a shortage. The fruit swells faster than the skin when a dry spell is followed by a lot of water. Even watering fixes it.
Yellowing lower leaves can be overwatering as easily as under. Constantly wet soil has no air in it and roots suffocate.
Your two beds differ because the soil differs: one is holding water and one is draining fast. They are different beds and should be watered differently, which a schedule cannot do and a finger can.