Follow Up on Subway System

So today I told the guy three drops of ranch. He did perfectly. 

I think the more objective and measurable an instruction is, the more likely it will yield the desired result. This seems obvious but I think that I still use a lot of relative adjectives that are open to interpretation.

Funny note about lunch today. I saw an aquaintance in line and we started talking as we waited. I told him my sauce woes and he chuckled. I found out why when he requested "a lot of mayo --- I will tell you when to stop." There was a good eighth inch layer of mayonnaise by the time he said to stop.