SB100 "was" nerve wracking but here's a bit of advice. You should try to band together at a DMV and try to get the whole "group" to register at once. It worked out that way with 9 of us in Santa Clara. 2 Gals asked how many of us were registering with SB100 and we all raised our hands.
Then she bypassed the stupid numbering system (I didn't advance /online the appointment figuring this was not a normal thing anyway) and the other woman took all our paper work all at once. Then after 20 minutes of waiting, she issued out 9 SB100's at once. They knew that once they got the person in Sacto, it'd be next to impossible to get them again if you all entered one-at-a-time. I think here, there's saftey in numbers. But that's just my wooden nickles worth of experience.