I applied through a recruiter. The process took 2 days. I interviewed at Shell (Houston, TX) in Dec 2012
Interview
Same procedure as the other SRDs you've read about. However, this was the last one for the year, so there were 18 candidates instead of the usual 4-8. None of the assessors were structural engineers either, so my technical interview was very basic (and probably unimpressive).
Interview questions [1]
Question 1
The most difficult part was the initial case study. Read FAST and prepare a cogent presentation. Otherwise you'll be left stumbling as the assessors ask increasingly difficult questions.
