Frank,
We have the same setup. Set the stop type to inline for stop A to use an inline throttle stop and use stop A timers for on off times. You can use the stop B output or the RPM switch output set to timer mode. For the RPM set to timer, it will be able to turn on the shifter solenoid and hold for a specific time and then turn off if using a push type. For push type shifter, the shifter type must be set to "Air" type There is a diagram to setup the shifter in the link below depending on what type of shifter solenoid you have (Hold, push or Co2). To go back to shifting on RPM, you must use the MSD output and not the delay box according to NHRA rules. A 3 way switch can be used to this setup.
http://www.dedenbear.com/instructionswiring/cc3.pdf
David
NHRA RULES "DELAY BOX/DEVICE
Permitted. Prior to use, all delay boxes/devices manufactured after
Jan. 1, 2003 must be NHRA-accepted. One delay box/device is
permitted; it may be attached to the transbrake, shift timer, and/or
throttle timer only. The wire to the transbrake (or line-loc) may
contain a splice that activates the two-step/launch-control device in
the ignition system. No other wiring shall be connected directly or
indirectly between any other part of the ignition system or any other
devices (such as data recorders, tachometers, suspension
components, fuel-injection system, etc.) and the delay box/device.
All wiring associated with the delay device, throttle-stop timer,
ignition system, automatic shifter, tachometer, data recorder, and
fuel-injection system must be fully visible, labeled, and traceable.
The rpm-based automatic shifters that are incorporated into some
delay boxes/devices may not be used for any purpose. The built-in
tachometer that is incorporated into some delay boxes/ devices
may not be used for any purpose.