Originally Posted by: Rinshin 
I am used to using cups cooking from American sources but I find it hard to downsize recipes using cups and spoons. Now that I prefer to make no more than 3 servings of recipes, it is sometimes hard to quickly reduce appropriately. If weight was used I can quickly calculate except things like 1 egg for 6-8 servings down to half which requires me to crack the egg and eyeball half.
A very valid argument for cutting, or increasing, recipe proportions.
I would like to see cookbook authors include the US and metric proportions next to each ingredient.
I see value in weighing ingredients for things like bread. From the bread books I've read, moving to weight seperates the bakers who make good bread from the bakers who make really good bread.
In terms of liquid, I would think it's more of a push, although the point mentioned earlier about the variance of a US vs. UK pint argues for weight.
It's nice to follow the authors measurements for a dish the first time I make it in order to have a sense of the taste profile they are after.
But in the end I tend to use the measurements more as guidelines than rules/specifics. I often play with proportions in protien, vegetables, herbs, and spices. For me it's moving away from specific measurements which allows us to play with food.