I did a small customisation to this font that has made me enjoy it even more:
I really like the first two hums and found it hard to choose between them. The distinctive Metropolis 'notes' overlayed on the default hum are fantastic, but there's also something appealing about the second hum that has this removed (and the third hum with the strings removed as well is awesome as well, but I like how the layered sounds make this font more distinctive, which the third one strips away).
Anyways I really wanted to have the best of both hums, so to speak, with the first two - so I loaded the second hum as the main one, and spliced the main hum onto the end of one of the blaster sounds. This means that it has hum2 most of the time, but if I want the 'notes' to kick in just tap the blaster block. The crossing point is the same, so it transitions nicely back to the main hum after the 14s or so of the loop, and by default you can interrupt it with a clash or lockup (but not a swing) to get back to the main hum. Currently still have this on a CS saber, so I only have one blaster block - on a CF this could be done with the third one as well to mix things up even more (although this might be going a bit too far!). Also on a CF as I remember you can configure the blaster priority which would affect this.
Anyways, just thought I'd mention this as I think it works brilliantly with this great unique font - thanks again for this one.