Only thing I'm wondering, unless pulling 50% out at a time, the drip system dropping at the same rate spread out over the month vs 4 times a month may not yield the same water change benefits
Correct, you’re not stressing the fish as much for sure.
I use to test my water weekly and slightly tweak more or less water as needed. Then I started testing monthly, now I may test 3 to 4 times a year just to make sure everything is going okay. The summer months I increase the water because my temps go up to 85. The winter I let them drop to 75 so less water is needed because the fish don't eat as much.