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I didn't code in VFP yet (corporate development tool is 2.6), but I released
several government-used applications written in Visual dBase, which
utilizes OOP very well (I think in some instances even better than VFP!)

I know that the approach is similar. Yes, create a class and custom
properties that will hold object attributes (CustNo, Name, Address, etc.)
Well, you said it yourself :) The idea behind is to facilitate minimization
of I/O and memory consumption through highly optimized class
hierarchy. I/O minimization might be a challenge, if you are in a multy-
user environment, but still possible. Make sure you DO optimize
your classes by creating as many BASE classes as possible, and then
implement your specialization classes by derivation.