I've seen the subject of covenant auto-summons being discussed on multiple different forums. From the threads that I've read, I gathered that the community has agreed upon an ideal location, maximum weapon upgrade, and level range to be summoned for Watchdogs of Farron. However, I can't seem to find a similar consensus when it comes to ideal summon criteria for Blades of Darkmoon or the Blue Sentinels.
Is there a generally agreed-upon ideal location, maximum weapon upgrade, and/or level range for being summoned in either Blades of the Darkmoon or the Blue Sentinels? Are there other criteria that need to be met that I haven't mentioned (besides having the covenant item equipped, of course)? It took me 45 minutes to get one Proof of a Concord Kept by farming silver knights, and the idea of spending 20-ish hours to get the other 27 I need is not very appealing.