What can I use to keep CA from sticking to a jig?

Pam won't help. There's enough moisture in it to bind the CA even faster than normal. The waxed paper is your best bet short of re-engineering your jig in delrin or teflon (polytetraflouroethylene)..

Cyanoacrylate is an acrylic resin which rapidly polymerises in the presence of water (specifically hydroxide ions), forming long, strong chains, joining the bonded surfaces together. If you wet your wooden jig first then add CA you will rapidly bond everything to the jig. In essence, water acts as the bonding accelerator. Once the glue has polymerised and cured, the reaction is over, it is impermaeble to water, thus the "sealing" effect on the string mentioned above.

Basically, if you are looking for a surface that CA will not bond with it needs to be non-porus, anhydrous and inert. Smooth, dry and non reactive.

Basically your choices are metal, teflon or delrin.

Car wax makes sense.. It's hydrophobic (repels water) and once dry is non-porus..