Yeah I noticed some practitioners here administering the LM scale from dropper bottles. It seems a quite common practice. But my understanding is that if more water is used as in 4oz or 8oz bottles, the chance of aggravations lessens. Even in his day Hahnemann was seen to dilute the dose from a 4oz bottle in up to 5 successive cups of water for his hypersensitive patients, and even then in the worst cases he would have the patient inhale the remedy from this 5th cup!
I think today because we have a much broader repertoire of remedies to choose from than Hahnemann did, that we don't need to see this level of aggravation from accessory symptoms occuring.
Maybe a patient with multiple chemical sensitivities would need this level of dilution. The whole point though is not to be put off by the administration process when the results can be so spectacular for the patient.