It is fairly common to use a pole with an asymetric spinnaker on race boats
I'll try to describe it here. If you already know how a symetrical spinnaker is rigged, then that will help.
A) asymetrical spinnaker, without a pole, has
1) a tack line attached forward
of the forestay.
2) two sheets
from the sail's clew to the aft quarters of the boat.
Trim up the sail just like this, then proceed, with caution :-)
B) now to add the pole, so you can run deeper downwind
3) rig a topping lift, use a jib halyard if you don't have a dedicated topper.
4) run guys from blocks on the widest part of the rail to the tack of the spinnaker.
5) your tack line must
be adjustable, preferably from the cockpit
The tack does not
ride on the jib/forestay.
6) the guy on the windward side, will go through the spinnaker pole outer jaw.
Now you are ready to transfer the load on the tack line to the guy.
Start by taking up tension in the guy.
Ease ( not release ) the tack line as the load comes on the guy.
This will move the tack of the spin aft and outboard
. The guy holds the sail back and the tack line acts as a downhaul and keeps the pole down.
It's actually easier than is sounds and is easier that a conventional spinnaker. The key is that you are transferring the sail's tack between the tack line and the guy. When the guy is slack and all of the load is on the tack line, then is works just like a cruising spinnaker.
1) transfer the load from the guy to the tack line
the guy will end up completer slack.
2) gybe just like a cruising spinnaker, the pole is doing nothing.
3) move the pole to the new windward side, then transfer load onto the new guy.
Easy, right ? Yes, it really needs a diagram.