| I have a Peavey G Bass with a Modulus made neck. I find the Modulus neck to have consistency across it. Also, it has sustain and tone somewhere in between my Aluminum necked basses (very piano like) and wood necked basses. I'll agree with with Oli, there is a little more noticeable attack, especially when tapping and popping, but by and large its sound is still closer to classic, wood necked basses.
I'm sure the Status necks and Moses necks are similar. Like all composite materials (I'm a degreed materials engineer as well) there are differences in character due to differences in the actual formula for each companies necks as well as differences introduced in their manufacturing process and location. (For a really great idea about this, look up discussions about the Wilson Pro Staff tennis racquets known as the St. Vincents. It seems the manufacturing process for all the carbon composite pro staffs was the same but those made in the tiny island have superior properties, due to the unique environment there.)
What you get with a synthetic neck is strength at lower weight, for most a significant increase in acoustic transmission, consistency across the entire neck length and less effect by environmental conditions.
I have found that composite necks are, like the aluminums, a little colder to the touch, and most have very flat radius. So you loose some feel.
What I love about my Peavey G Modulus neck is that it is the thinnest neck at the nut I've ever played (its thinner then any jazz or other neck, period. Under the 1.5" it was advertised. Mine measured in at right in between 1 3/8 and 1 7/16.
Hope this helps in some way.
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TOM RICHARDS
AP International-Brubaker Brute Series Basses
Brubaker Brute Club #23
NJ Bassist Club #101.5 | 
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