That's a huge amount of hashing, which takes up almost all of the time. The total storage is about 109GB. The run from scratch took 3.0 hours, so doubled the sync time. It writes the index while syncing. I didn't have a chance to properly size the header buckets, because I needed the count first. So should do a little better next time. By way of comparison, a local sync off of a fully-synced Core node by ElextrumX or Fulcrum takes days, similar size I think.