thanks for the input.
Well, I have thought about putting the switch in the back, with no link to the front also, but I'm a little worry to put one more step to the signal path, that's all.
I believe there are some owners that have instaled the pot, after they built the kit, so I will appreciate their comments also. Maybe the difference is not audible, but I remember when I have replaced the original volume pot with the TKD superior quality, there was an audible improvement. That's why I though that one more step can produce a change.
Best for you,
Beto