Hey there Del!
Way to go on getting one done! I completely agree with you on the seaming issue. I wondered about doing this ITR too, mostly because seaming is just an extra time factor, and I'll do anything to save a few minutes (that could be the difference between 1 more hat, you know?)
If a few of us give it a try knitting in the round, let's share what we found out while converting the pattern.
We're glad to have ya!