Hi!
If the cash balance is actually higher on those days based on the accounted transactions, then there is no need to worry, as u can always prove that ur business is such that U may have high cash balances certain days...
I think if your high cash balance is what is reflected in books then I dont think any adjustment is required, moreover your end balance is normal. Hence in my opinion no adjustment are required in such cases. If u do, u may invite trouble, as u r going to create evidences for not existing aspect.
So book balance tallies with physical balance, dont do adjustment.
Pls do reply your final decision..