Make sure that if you step up to a condenser microphone (nice and sensitive) with less than high isolation
headphones, you can get the click track to be picked up my the mic via leakage from your headphones.
You can even get some of that click track in a mic pointed at your acoustic guitar if the click is hot enough
and your headphones not iso enough.
I don't know if this helps but if has happend to me this way.
:LSB