Thanks for your reply.
I think the Professional series exam is focused on Design and Develop
Solution, coding skills is not important point for this certification.
(That's MCTS focus)
I tried exam 70-554, and scored 820 for following section scores:
Exam 70-529: 80%
Exam 70-549: 85%
so... I think the sectioal scoring may use:
Coding exams: 30-40% (including 70-551, 70-552 and 70-554)
Design exam: 60-70% (including 70-551, 70-552 and 70-554)
But, 70-553 may not apply to this rule:
Foundation: 30%
Windows Application Development: 35%
Web Application Development: 35%
(All contents is based on my think

)
A big problem is no any official training materials (MOC, Training Kits) to
prepare professional series exam, most training source comes from my
experiences....