As some of you know, Mark is well-versed in InRoads Survey as well as InRoads. Here is a tip for all the Surveyors out there.
A student in one of Mark's training classes asked him this question:
What is considered a 'big' fieldbook where the processing and manipulation speed might noticeably degrade? Is 60,000 to 70,000 points a large file?
Here is the Zen Dude's response:
That's a good question, but the answer is partially dependent on the computer hardware, and available memory. Bottom line, yes, 60-70k points is fairly large.
I generally use my HP laptop that has 16 GB of RAM, an Intel i7 CPU running at 2.4 GHz on Windows 8.1. The fieldbook that I use in my survey training has 5500 points, (around a 700 KB fieldbook) and I don't have any speed issues. But that might be a small file for some people.
I've looked at some other fieldbooks and have one that is a little over 16,000 points (around 2.5 MB) and that's not difficult to work with, but at this size is when I would start toggling off the Automatic Refresh on the Survey Options, and do it manually as needed if I were doing a lot of edits.
Another fieldbook I had was a bit over 6 MB with over 40,000 points. Then I tried a file with around 80,000 points, almost a 10 MB fieldbook. That one took about 5 minutes to open. I would very likely have some of the Survey Options toggled off when working with a file this large. And any operation toggling on and off Codes, or Point Numbers could take a minute to appear. A file this large would start to test my patience if I had to do a lot of editing. With this much field data I would probably start considering breaking the fieldbook up into more manageable pieces and then combining them after I did as much editing in the smaller fieldbooks as possible.
Beyond the sheer number of points in the fieldbook, there may be additional overhead when it's doing a lot of line work connectivity versus spot features, and Custom Operations will definitely affect the overall speed. There would probably be added lags if the MicroStation Workspace had a lot of complexity like loads of Cell Libraries and Line Styles to hunt through in order for InRoads Survey to place those graphics. And we all know the implications of working across a network versus locally.
I would be very curious to hear what anyone else has experienced.
Civilly yours,
-zen
Mark was great. Very Very knowledgeable on the subjects and really wanted the students to learn. He has a great personality but never got away from the subject at hand. Great person and instructor. Excellent ! 
