Those locking tabs are kinda' like a band-aid in a way. It's like fixing the plumbing in a house that is a 100 years old, you fix one leak or drip and it causes a leak somewhere else. The flywheel bolts loosening up are a warning sign, and keeping them fixed with these plates doesn't fix what causes them to come loose to begin with, and gives you a false sense of achievement. It will just make something else fail if you keep operating the engine in these harmonic danger zones. The best solutions are to not create your build around these bad harmonic RPM's. Like strokersix mentioned, its easy to tell where these harmonic zones are, so tailor your driving habits or builds to stay away from them.
