My TU Walmart score for this month was 702 and the scores I received from lenders during my mini -app spree were 707.  So, I'm thinking the WalMart score is pretty accurate to lenders (Discover and Amex) based on my apps. 

YMMV

Edited: IPad' auto correct

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Starting Score: 600's
Current Score: Exp Plus 743 04/13; 707 LP Discover 01/13 ; 733 05/13, 693 04/13, 703 03/13, 02/13, 702 TU WalMart 01/13; 702 EX LP 11/12; EQ 699 MyFico 01/13, EQ 699 11/12, CS 714 03/13
Goal Score: 800