Hi, regarding changing one paid source to a free source, I read other guidelines recently on WikiTree - but can't remember where - it was suggested that the original source used should always be quoted, even where it was behind a paywall. This is something we encounter often as eg for a pre-1855 baptism in Scotland, a free but secondary source such as Family Search can give some good basic transcribed information and an easy to copy and paste source, but the Old Parish Register entry from ScotlandsPeople will often give far more useful information and you know it is the primary source, and so seems to be the logical choice?.