I wouldn't turn this off. The consistency check error you are probably talking about usually is due to the "error" of having the same MIC in the plan more than once.
If had the same issue in many, many clients. For one, you should be dealing with a small subset of users. Creating and modifying plans should only be done by 2, maybe 3 at most at a given plant. Many clients manage this centrally and only have 2-3 folks doing all the plans for all their business lines and plants. It should not be difficult to explain this issue to these few users..
Hopefully you don't really say "just ignore it". Hopefully you've explained the error and issue to them. What causes it and that they should still check the log when they save.
I don't like that particular error myself. Now if it is another error, and not the duplicate MIC error let us know what it is. I'm not aware of other errors that you might say "just ignore".
FF