Knowledge to Lightning Knowledge Transition

Good day all! We are just starting the planning for the transition to Lightning. At a recent Salesforce camp, one of the instructors mentioned that we should transition Classic Knowledge to Lightning Knowledge BEFORE Lightning is enabled in our org because otherwise we'll run into issues with migrating our articles. (I understand you can enable Lightning Knowledge without Lightning being enabled in your org.) Currently, we have over 2K articles, so not a lot compared to most orgs, but I'd really appreciate hearing from those of you who have made the transition, i.e., how long did it take and what are the gotchas you discovered that aren't documented (like the one above). With the rolling enablement of Lightning to all orgs this year, we may have to do the transition sooner than later! Thanks much for any help and advice.