In the context of someone who does not wish to pursue serious studies toward being a classical guitarist but intends to use a classical or flamenco instrument to play a mix of some classical, jazz variations and pop:
All other things being assumed to be equal, does the presence of a truss rod have an appreciable, audible, detrimental effect on resonance/tone transfer from the fingerboard/neck to the body of the guitar?
If not, wouldn't prudence prescribe having a truss rod "just in case" so that a comparatively minor adjustment might avoid a full blown fret dressing (or worse)?
So, for example, this guitar seems very attractive but only has ebony stabilizers in the neck, rather than an adjustable rod. Why risk it?
http://www.12fret.com/instruments/al...way-classical/