I used to have AP9s with spades and was able to use the screw-on Monster X-Terminator banana adapters with success. Here'a a link to them:
http://www.audioadvisor.com/store/productdetail.asp?sku=MCXT&product_name=X-Terminators%20Banana%20Adapter%20Kit%20-%20Pair
Eventually, when I switched to shorter biwire runs, I sent them back to Analysis Plus for re-termination.
http://www.audioadvisor.com/store/productdetail.asp?sku=MCXT&product_name=X-Terminators%20Banana%20Adapter%20Kit%20-%20Pair
Eventually, when I switched to shorter biwire runs, I sent them back to Analysis Plus for re-termination.