Irrigation advice

I let the turf tell me what to do. Water deeply, and infrequently. 10 min per zone could be too much, but more than likely too little...depends on what size nozzle you installed on the heads.

Which videos did you use? I'm interested in doing the same.

Are they spray or rotary? If Spray that's likely enough if rotary not enough for summer but plenty for now.

In the summer I was going T TH S because those were the days that was easiest for me to turn them off if it didn't need it.

I have all spray heads so the entire area is sprayed every second. Rotary sprays mush less water per second per area as they cover more ground so you need more time.

With spray heads I'd cycle the zones once through for 5 minutes then come back for 10-15 minutes more. Not sure if that was necessary as just doing 15 minutes is likely fine. But that was plenty.

As said, you want to water just enough for your grass to not start wilting before the next water. Don't over water or they won't grow as long of roots. But honestly don't sweat it too much its not that hard.

Don't irrigate!!! It cost money in a higher water bill. And the worst part is it will make your lawn grow faster. Which means you will have to mow more frequently. Just a lose-lose situation.