Sun's online SCWCD training course WJB-310-EE5 -how long?

How long does this training course take other people who have tried it?

I have been struggling through WJB-310-EE5 Sun online Java course.
(See http://www.sun.com/training/catalog/courses/WJB-310-EE5.xml)

This, together with WJB-314-EE5 http://www.sun.com/training/catalog/courses/WJB-314-EE5.xml
is supposed to prepare for the SCWCD exams.

The "label on the tin" says duration "18 hours" for the WJB-310-EE5, but I have been finding it takes me much, much longer

.
I have not found any guidance on how long WJB-314-EE5 is supposed to take.

I wondered if anyone else had experienced this course? :?:

It would be good to compare notes :?.

Thanks
Jon

Anyone?

bump