Bill, while Marsha is the go-to person for cheffy questions

I'd like to jump in and encourage you to get that digital scale ASAP. It makes a huge difference, and more so with dry measure than wet, mainly because the conversion from weight to volume is more complicated with solids, which don't necessarily have the same specific gravity as water.
Get your scale, weight out 2.65 ounces of semolina, and you'll have a much closer equivalent. (And that's only about one-third of a cup, by the way, which illustrates my point about converting solids from weight to volume.
