I have a Taylor 2006 test kit. It gives the option of using a 25 ml sample or a 10 ml sample for the FC test. The question is that the instructions for FC test says to use two dippers of DPD R 0870, not differentiating whether that is for the 10 ml or 25 ml sample. If 2 dippers are OK for 25 ml, wouldn't it be better to use 1 dipper the 10 ml sample? Will the test results be affected either way?