Tips for good natural harmonics?

[Decoyx7]

I love bass harmonics, and I very much love playing them, but quite often, they just arn't loud enough.
Good examples for songs I've tryied playing are Lifting Shadows Off a Dream by Dream Theater, and YYZ by Rush.
Is there anything that will help, even the slightest bit?
Also, on the Dream Theater song, I know he plays harmonics on the fourth fret on the G and C strings, away from the natural harmonics on the 5th, 7th, 9th, and 12th fretts.
Any way to improve the sound and make it prominent?
And also, how to make the notes sound on the not-5th/7th/9th/12th natural harmonics?

Thanks everyone!

[ajp1991105]

Adding mids and some highs to your tone will allow the natural overtones of the fundamental string to ring out more easily, therefore giving you a much cleaner sound when you strike the harmonic.