This is purely from the data collection point over the last 1 year since I’m involved in this process.
I love data and data analytics and the people who manage this website have created this amazing excel sheet with application data sorted by more then 50 data points (locations, timings, durations, oath dates and frequency, IRCC offices). Its available for everyone to see (I can share the link once I’m back on my computer), I used those matrixes and data points to cross reference indexes and analyzed those stats just for processing at Scarborough only and posted my conclusion based solely on the data. No insider information or conspiracy theories.
I don’t mean to offend or disappoint anyone, sorry if I did. Of course I can be wrong and there will be anomalies but this is just data driven conclusion.