I have cleared OCEWSD6 with 81 % two weeks before ( sorry I am little late to share this
). Below were my steps for preparations:-
1- Following JavaRanch as and when get time.
2- Ivan Notes
3- MZ notes and mock
4- Java Web Services Up and Running
5- ePractize Labs
Though exam was little tough compare to my previous certifications (SCBCD5, SCWCD5) but some questions were straight and it was manageable.
I was preparing from quite some time but I was unable to complete studies due to work load but I believe regular preparation of 4-6 months should be sufficient to prepare this.
Thanks a lot guys...