Replacing gain pot with switch problem

[AM]

I recently replaced the gain pot of my overdrive with a 3PDT switch. On one side I soldered a resistor, on the other a jumper.
That way I have my two favorite gain settings as presets and I can switch between them.  There is a fixed resistor on the board setting the minimum gain value.
Now, the problem:
I get a popping sound every time I stomp on the switch. The sound is even more apparent when I go from the high gain to the low gain setting. How can I remedy this? Do I need some kind of pull down resistor? There are no LEDs connected to the switch, just the jumper, the resistor and the cables back and forth the circuit board.
Thanks in advance for any answers.
Rough wiring sketch:

                          I--------R--------I
                         _I         _         I_

from board----->  _          _          _>--------to board

                         _          _          _
                         I                       I
                         ------jumper------
                       

[AM]

Nobody has any idea? Bummer....I thought somebody would have some suggestion. Everything else works great on the pedal. I found the right value LED resistor for the On/Off switch which is the usual popping sound trouble maker and it works really well. It's just that mechanical sound passing through the signal when I switch between channels. It's especially irritating when I have my delay on. It repeats the pop...the pop...the pop...the pop...the pop...the pop...the pop...the pop...

[slacker]

Without knowing what the the rest of the circuit is it's difficult to say, but it's probably because when you stomp the switch there's a brief period when the circuit is broken because neither the jumper or the resistor are connected.
If that's the problem you can solve it by moving the resistor to the middle 2 lugs of the switch, the ones where your wires to and from the board are going. That way in one position of the switch the resistor is in the circuit and in the other the jumper shorts out the resistor, this gives you the same 2 presets you had before but the circuit is never broken.

Hope that makes sense  

[AM]

 Thanks Ian. I will try this and report back. I have to wait until tomorrow morning though. So, to make sure I understood what you wrote, does the following diagram follow what you are suggesting?                        

                          _          _          _

                            I-------R--------I
from board----->  _I        _           I_ >--------to board

                          _          _          _
                          I                       I
                           ------jumper------
                     

[slacker]

Yeah that's it.

[AM]

Cool. Cheers Ian. I'll try it tomorrow. Another thing that just crossed my mind.....what if I would treat the resistor as a separate effect unit so to speak and wire it as if I was wiring an effect board. Do you think that would be even more effective or it introduces again the momentary breaking circuit problem I already have ?
Something like this:

                          I--------R--------I
                         _I         _           I_
                            I            _____________>to ground
                              I         I
from board----->  _    I      _I         _>--------to board
                                 I
                                  I
                         _         I _           _
                         I                         I
                         -------jumper------

[AM]

I'm writing to report the results. Ian I tried both your suggestion and the other idea I came up with last night. Both experiments did nothing to eliminate the popping sound.
I guess I'll have to deal with it.  I think it's probably just the mechanical sound of the switch transfered through the audio path. Maybe the fact that the switch is within the gain circuit makes it more noticeable than I would wish.
Thank you very much for taking the time to look at my post and give your suggestion. I really appreciate it.