I did run into trouble.
I got three scallops of the last row completed and the yarn is done. Therefore, Montreal didn't get to see the poncho.
I was so excited about wearing the piece I forgot all about blocking it, so that would've taken an entire day. [to see a superb example of blocking go here, SweetGeorgia's blog, lovely blog] But I thought, had I enough yarn to wear it, the weight of the scallops would pull the poncho down and it would look just right. I am a beginner afterall. I'm thinking I'll have to create a pitchers mound to block this poncho.
I could be quite happy with the poncho without the last row of scallops but the completed three look so pretty, I have to do the full round. I happen to have a long scarf made of the same yarn. For the sake of the poncho, I'll sacrifice the scarf.
By the way, I must give credit to my sister of Twister's Yarns blog. She was the one who introduced me to this pattern. She crocheted one poncho in a similar yarn as the pattern called for, but ran into the same problem, not enough yarn. She is now working on her next poncho, using her own hand-spun over-dyed yarn, and will do the full scallops.