If you print a paystub in 3R it has the current PTO balance, not the balance that was available when they paystub was generated. A printed paystub should accurate reflect the data that was present at the time. Current information on a historical document, especially a pay stub calls into question the legitimacy of the document.
Paystubs do offer this at present. This was addressed in a previous release. Please contact Support for additional details if needed after review.