Are drop test kits more accurate than test strips for pool water testing?

Yes, drop test kits are more accurate than strips. Strips are fine for a quick check but are notoriously unreliable, especially if stored improperly. A good drop kit like the Taylor K-2006 uses a DPD or FAS-DPD method—you count drops until the sample changes color, giving a repeatable and accurate result. Spend the $30 and be done.