I have had this question in mind ever since I reached Tier 6 ... when the stole was long enough to spread out despite the dpns holding those idle stitches. If knitting with single balls or skeins, finishing one unit of yarn is always one way of measuring my progress. So, you see, the problem with the FPS is that I am knitting from a 1lb cone!
I know, just looking at the stole itself should be enough to assure myself that I did make progress:
Same trick ... tape the whole thing to the wall. For 18 tiers, it's either the carpet or the wall ... and it's easier to capture the whole length standing. Oh, I taped a 6-inch dpn for size reference too.
Yet, I still couldn't help myself ... just have to take the other 1lb cone out and have a look: