When I applied in July, my check list said i just needed the letter from a bank listing all my accounts with their balances and any loans and the average balance over 6 months. If you have an average balance on your letter you don't need to send statements. It's only complicated if you had a big lump sum that makes your average several times lower than your current balance.
My bank only gave me a balance certificate (current balance and the date they opened my account, plus any loans) and told me to send 6 months worth of COMPOSITE statements ie a final balance for each of my accounts, but not necessarily a transaction history. My proof of funds was assessed and passed. They don't care about the transactions unless there is one for $12000 paid in by "loans4u".
I think people are over complicating things and causing themselves unnecessary angst.