I don't see an alk reading, while calcium isn't important to your liner pool, you do want to test the alkalinity.

Call me cheep but, I test the cl with the 10 ml (1 drop = .5 ppm) to save my reagents - it's close enough for day to day testing (I'll only do the 25 ml test if I'm battling something and need that precision.)

For alk and hardness, I use the 25 ml test until it has 'stabilized' and then I use the 10 ml alternative test (1 drop = 25) to insure that I'm still where I was. The cya test can't be done with less reagent, so I'd only do it if you had lost a lot of water or had added more the week before. (BTW - Mom, I get ~6 3/4 tests out of 2 .75 oz bottles in the K2005/6 kit )