Not if you use correct procedures. I'll admit the older 900 series may not have as many safety features built in but I have a wide range of packs and the smaller DC/portables. (newer models are much better)
Cables will arc if you dont follow the correct sequence or try to adjust power settings at the wrong times
I have heard they referred to as "the widow maker"
Haha OR they could make them so you don't have to follow ANY procedure as just shoot and not worry about it, that's why I use the profoto's I can up or down the power settings and it will auto dump if it needs to, the older ones wouldn't auto-dump but you could still do it without concern for your life (or your pants).
Now I know to stay away from Normans...
~Stone | Sent w/ iPhone using Tapatalk
~Stone | "...of course, that's just my opinion. I could be wrong."~Dennis Miller