Well, we use a third party application that sets up drawings to 1/8" scale. So, everything in model space in 1/8" scale, even the details. When I switch to model space, to keep things simple, I keep the model space at 1/8" scale also. Therefore, If I want a detail blown up to 1/4", 1/2" or whatever I simple need to zoom the viewport to 2xp, 4xp etc... I don't want to setup other dimension styles or text styles either. So, now, I just draw the details in model space, and add the text in model space. Again, works well for what I do.
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