basic watering question

[Calbears]

I have a pretty basic question regarding watering and would like to illicit some feedback from more experienced orchid growers. My usual watering method is to take my plants to the sink, and using a water bottle with a sport top that I fill a day or two ahead of time, water from the top of the media taking care not to wet the foliage. I usually put a pint of water through a 3-4" pot. I'll then come back 10-15 minutes later and rewater with my weak fertilizer solution. Before I set the chids back on their humidity/drip tray, I typically tilt them over the sink and let all the free excess water in the pots run out. Should I not be doing this? I'm guessing that growers with hundreds of plants in their greenhouse don't take this time for every plant. Is a well draining mix and pot enough? Am I doing my plants a disservice by "over draining?"

Thank you