question about %25 stroke limiter of scn5

[sliversgyj]

I set the option "enable 25% stroke limiter to avoid damage in testmodes" in SCN5 plugin settings
But I'm not sure why it said "in testmodes",is it will not have 25% limiter in game?
If I set this option,is it mean I don't need to worry about the bad math setting to damage my SCN5?