I and others would be pleased if U would change the transaction date in your statements to the exact date of the trade rather than mostly +1-7 days later with some up to but no more than 30 days later. This would indeed make the auditing process moe pleasant for complex portfolios. An average price for the trade would also be nice.
ps, have not found a chess transaction date that is earlier than the date which the trade actually took place. This gives me a warm feeling all over and also a little confidence in Chess programming & analysts staff skills base & experience. LOL.