Headbanger phone amp issues...

[GibsonGM]

Hi,  I built a Headbanger headphone amp, using 2 LM386's as instructed.  My construction isn't as neat as the build notes suggest it be, I am trying to fit 2 of these on some perf that's about 4" x 2".   
So of course I get problems.  I've debugged and found nothing amiss.
 
The thing works, but the channels bleed together, and there's some distortion at unpredictable places on the volume pot.    I removed one channel's input, wiper & gnd connection. The other channel sounds fine, but I still get bleed-thru at the non-connected 386, which is suggesting to me that I am bleeding signal thru the ground connections - it was mentioned that these are sensitive that way.
Question is, how should inputs and output, and chips too, be grounded?  I've got the chips and input going to a 'bus line', to -9V.  The output ground is taken near the output, where the .1uf/10r network grounds.   That point then ties over the where -9V connects to the board.  Is there a better way that's less likely to have these problems?

Part II:  is there an easier way to just amplify a headphone signal for recording that's not so picky?   I thought about using 1 simple 386 circuit, and using a 100K pot to pan the inputs L or R (it would probably be attenuated in the center, getting louder to L or R)...this is for monitoring while recording, so that would be OK/desirable.
Thanks, if anyone has any experience with this little project... 

[oldrocker]

Sorry it took me so long to reply but my computer crashed big time.
The Headbanger works great IMHO.  I made four of them and they all work.
The grounding is very important so just make sure you do that right.  The input and output grounds don't connect together until they reach the batteries negative voltage or you may get oscillation.  So run them 2 grounds separate until they reach the negative of the battery.  Also this is very important.  YOU HAVE TO GROUND THE VOLUME KNOB METAL HOUSING or it will sound scratchy.
I'm not sure about the bleed through since I  didn't experience this when I built mine.  But you may want to double check how you grounded it.