Normally I blog every other week and have 2 new tiers added. Next blog is due next week, but we're away, and I won't be working on this over the weekend, so I have only one week's worth of knitting = 1 tier to show.
I intend to knit up to tier 19 and see how long this is. I'm very indecisive as to how many tiers to knit. Current feeling is to go the whole hog and knit all 23, but this might change!