You can check logged lengths versus actual cart length (to AUX mark) as a part of the log validation process.
Use the validation pop-up menu to access cart length-checking settings. [Right-Click] and select the menu item Cart Length Check, as shown. The selected length range will be displayed with a check mark adjacent to the item.
If you change the cart length check value, you will be offered the opportunity to re-validate the current log using the new length check value.
XStudio will remember the setting you make and it will be in effect the next time you open a validation window.
