I need advice about trimmer pots being used for audio/tone controls

[School]

I'll be using 2 or 3 electret condenser capsules for acoustic guitar pickups.
I plan on having separate tone controls for each pickup.
That would take up too much space if I use normal pots, so I want to use the mini trimmer pots.

Is there any sort of mechanical/electrical/quality difference that I should know about?

 

[crutschow]

For use as tone controls, there is no significant electrical or quality difference between a normal pot and a trimpot. The mechanical differences are obvious.

 

[School]

Ok, that's good.

My next question then, is can anyone suggest some good quality trimmers to use?

Because of the nature that these will sit for very long periods without being adjusted, I need something that will not develop noise as a result of oxidation, or whatever.
I don't imagine that cost would be an object here, unless they were some sort of exotic gold layered pots or something.

 

[audioguru]

Trimpots made by Bourns are good. They are Cermet.