⚡️High vs Low Discharge Rate

With my sample batteries, and according to how I fly my quads, I do not prefer the more expensive, heavier, 70C battery.
Contents:
1. Quick look at JI Power 4S 1500mAh 25C & ZOP 4S 1500mAh 70C, 0:17
2. Test Methodology, 3:13
3. Quantitative Analysis: DVR showing voltage sag, at 3:33
4. Quantitative Analysis: Blackbox logs showing voltage sag, at 6:08
5. Qualitative Analysis: how do the batteries behave in the air? At 6:26
6. FPV freestyle flight, at 6:40