AeonTown:
I tried to follow the traditional method for creating glows in the following example. It's the closest I could get using a standard thin font in my collection (BernhardEFFashion). There may be other thin fonts out there that come closer, I didn't check.
The top portion of the image is strictly text layers (no paths). I created 5 text layers for each color glow (5 sets: white, light yellow, yellow, light orange, and pink-ish). It's actually a very quick process. Duplicate the process for each color:
1. Create one text layer using white font.
2. Duplicate the text layer 4 times.
3. Starting with the bottom-most layer, apply a Gaussian blur of 30px.
4. Move up to the next layer, apply g. blur of 15.
5. The next layer up, apply g. blur of 7.
6. Fourth layer, apply g. blur of 3px.
7. Leave top-most layer as is.
With those 5 layers visible only, merge them. Start a new set with a different color and apply the same process as above.
The bottom portion of the image you see those 5 sets merged down onto a black background and an incandescent gradient mapped onto the text (Colors - Map - Gradient Map) make sure the incandescent gradient is selected in your gradient dialog before running map.
I am including the xcf so you can check it out for yourself.
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"In order to attain the impossible, one must attempt the absurd."
~ Miguel de Cervantes