Hello, Kovid. I haven't been able to stop to follow up. I'm dealing with family emergencies and health issues and haven't had Calibre open since shortly after this. I still can't stop to send you the tags file, but the request of a default setting is still valid as saving changes in a ruleset does NOT apply them to that same ruleset in another place (ie, tag mapper vs book import rules for tags vs tag rules on metadata searches) even though its the same ruleset. I have to go to each area mentioned, open the rules, and resave as applicable to that function. This alone is the part easily overlooked and tedious. The fact that my rulesets are taking so long to open is secondary and mentioned only to illustrate why I'm asking. An additional side note, if it matters... I only have two rulesets. ....sent from my phone while on the go.... On Aug 11, 2016 10:46 AM, "Kovid Goyal"