If you have more than four PCs in a room, they will naturally tend to break off into groups of two to three, following their own little conversations independent of the others. This makes the log that much harder to follow.
Another option -- if there's someone willing to bail you out -- is to shuffle some of the PCs off to another holodeck, then either tend to them in another sign-on (keeping in mind the delay in response time you'll have), or else get another GM to tend to the other PCs for you.
Similarly, if a PC has a life-time goal that defines his motivations, even if it's not a matter of material wealth, you can deprive the player of his "plot hook" if you resolve this issue right off within the first few logs. If the PC's driving concern is to find his long-lost brother, it's a pretty cheap victory if he finds his brother walking down the street in the first log.
Stringing out players can be frustrating, but when a player accomplishes a personal goal (not just something ascribed by the GM), it should be a fairly major event, and should ideally take some time to get to that point.
Back to Role-Play: Section 10.3