It's a great tool when you can reasonably estimate the period you will receive funds and truly estimate the amount of funds coming in. We usually lock something in on the base contract to take the fluctuation out of the equation, but lots and lots of change orders really hose that.
I'm managing a 100M (CAD) project right now, payable in CAD to a US company...I wish we were only losing hundreds Hedged some on the front end which was nice, but its catching up with us and then some.
Yes, there used to be a lot more e-thrifts to have by misspelling but now that there is a list in the item specifics, if they pick from the list it shows up when I search on this misspelling, at least that's my experience.
My own successful E Thrift