Not quite - but closer.
Thanks to encouragement from a very kind fellow Ravelry knitter,
FloridaMo*, I attempted sewing on the edging to the Estonian triangle.
I had to pull out and redo the curve at the point but feel better about it now. Only trouble is I need to now pull out the WHOLE thing and start again. I have less length on one side than the other.
Live and learn. Good thing I have a goodly supply of holiday M&Ms on hand!
*FloridaMo is blogless, but I've linked to her Flickr pictures. She really turns out some beautiful shawls.