Here is a small job that can be used to experiment with the CacheLookup property on tables. try it out in 2 tier and 3 tier and compare the results.
Here is what I got on a 2tier installation:
this job will work best on Axapta 3. Since Axapta 4 the used SystemMonitor is only an empty hull without any functionality inside - so you'll have to use the sql-trace (don't forget to allow the client-trace on aos-server!)