OK, I might have it now.
MOMENTARY OR LATCHING TRUE BYPASS LOOPER AND MOMENTARY STUTTER/MUTE SWITCH

Once again, the conditions:
I want the output to be selectable to achieve each of these functions
A. a momentary insert of a send/return loop, and when the momentary stomp is at rest - the input.
B. a bypass of the input to the output - which condition A provides when the stomp is at rest.
C. the loop return to the output, when the momentary is at rest.
D. a stutter of the input when the momentary is stomped, and muted when at rest.
E. a stutter of the loop return when stomped, muted when at rest.
SW1 is a 3PDT latching stompswitch, SW2 is a DPDT toggle, SW3 is a DPDT momentary stompswitch.
In the truth table, the switch "up" - with the upper two contacts engaged, is represented by a "0". The bottom two contacts of the switch is represented by a "1".
When the momentary is pressed it is a 1, when it is at rest it is a zero. So, the column in the table under "3" represents the momentary switch being pressed (1) or at rest(0) and those two states are further determined by columns "1" and "2".
First example, when the switches are all up, the output signal is the input. Doc gets it.
One tricky part is - if I have the loop return routed to the output, do I in fact have the input connected to the send? If not, there would be no signal.
Another tricky part is - if the output signal is the input, is it True Bypass OR is the input being loaded by a connection to the send?
The output conditions are listed 1-8. I'll leave them blank so folks can look at this and Help Me Please.
Remember, Sw3 is the momentary stomp: 1 is pressed, 0 is at-rest.
I believe that output conditions 1 and 2 are: Out = In when the mom. sw is at rest, and Out = Loop Return when the mom. sw is pressed down. This would meet functional condition A. right? And condition B - true bypass
I think output conditions 3 and 4 are Out =Mute when at rest, and Out =Loop return when pressed. This meets condition E. right?
I think conditions 5 and 6 are Out = Loop Return when at rest, and Out = Input when pressed - but the Input is loaded by being connected to the Send and the Output. right? so 5 meets functional condition C. 6 is
undesired, but - This is OK*
Conditions 7 and 8 are Output = Mute when at rest, and Out = Input when the mom. is pressed. This meets D. yes?
As for condition 6 of the truth table, the input is loaded but -
this isn't a useful configuration of the device -(
oh yes it is! See below) the loop is in when at rest, and you press the pedal and it goes away. I'm more interested in getting the conventional opposite - at rest it is in bypass, press the switch down for a loop insert. This I get with output conditions 1 and 2.
Sw2 would be a toggle - Insert mode or Stutter ("Berst" mode. Don't go there). Sw 1 is essentially my bypass switch, and Sw 3 is the momentary stomp.
I know it seems confusing. I couldn't come up with a simpler drawing. Please do the truth table for yourself and see what you get.