3DFan:
What's wrong with the guitar sound you're getting? And where (low, mid, hight)?
What type of sound you are looking for?
It's a rhitm acoustic guitar track? Or is like a solo acoustic guitar track?
It's a nylon guitar? I love nylon
Where do you want to put it in the mix? Like a base sound? I mean driven the song or just filling space?
I play acoustic guitar and I have serius problems to get it right too.
Your room is concrete or sheetrock?
Did you try cardio mic 2" 3" from the guitar? It's depend where do you want to sit the guitar in the mix.
Forget omni if you have sheetrock walls.
Lionard