kelemvor;
Thanks. I'm concerned that a pliers might reshape the dropper and result in inaccuracy - perhaps I can push it over/out with my thumb. For me the 2006C looks too big and I would never use all the CH, TA, Acid demand, or Base demand reagents. I'll examine the case-mod when I get the 2 oz bottle.

Watermom,
Thanks. Noted. Personally, I find OTO a little hard to read especially in the evening (when I'm home) and find the DPD color comparator (K-2005 type) eaisier to read. I understand that the DPD test can bleach out with high FC and that's a good reason for many to choose OTO. That said, I will very likely use the FAS-DPD test exclusively as it is so much eaiser to read than either color comparator - especially the CC test.