Yes, I'd never heard of taking flowers off the scape in order to gather pollen by keeping the stamens in the bloom, either. A huge difference in how large commercial operations may find it easiest to work and how garden hybridizers may approach things when many fewer blooms may create a desire to keep all flowers intact on-scape. At most, I may have 15 out of 200 cultivars to dab with pollen each day during peak flowering season, so its really easy to stroll by the flower beds, see what's bloomed, figure out which matches I really want to make specifically for each bloom, and then at most I am back to just enjoying the garden within the hour. I also agree about the watering... I take extra care to see how the blooming plants are doing and get them hydrated if needed.