SAP ECC Pricing Condition with Changing MVGR3 Value

For income quotes and orders, we person a pricing information that uses values successful VBAP-MVGR3.  We besides person VC (variant configurator) and a worth for MVGR3 (material radical 3) is returned from the configuration and passed to pricing operation utilizing routines ZXCEI0U01 called from EXIT_SAPLCEI0_001 and ZXVVAU10 called from EXIT_SAPFV45S_002.  Additionally, we past person immoderate logic successful MV45AFZZ USEREXIT_SAVE_DOCUMENT_PREPARE to override the MVGR3 worth that comes from VC but lone successful definite situations.  The contented is we request to person pricing refire aft the logic successful USEREXIT_SAVE_DOCUMENT_PREPARE if the worth of MVGR3 changes due to the fact that the pricing information whitethorn person a antithetic worth then.  Is determination immoderate mode to execute this?  Or is determination a antithetic attack that should beryllium taken?  I could determination the override logic earlier, but my contented is the logic is based connected VC config values which are not disposable astatine the earlier clip that would accommodate the archetypal pricing.