Need to change Spade to Banana


I have an Anthem Amp 2, and although it is a fine amp, Anthem really screwed the pooch with the binding posts. The spade lugs on my Analysis Plus Oval 9 will not fit into the 'groove' of the binding post. I currently am using Monster banana plugs that allow a spade lug to be attached but feel as though the surface area that actually makes contact between the banana plug and the spade lug is quite minimal.

Can anyone suggest a better spade-to-banana converter?
mdomnick
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.
Thanks for the info Gunbei, but those are the exact Monsters I use. Since we have identical wire, do you feel there is enough contact area between the Monster spade-banana and the spade lug? I just ordered a similar animal from Magnepan to try it out. I'll let you know what i think of them when I get it. In the mean time other suggestions (aside from AQ's version of this also sold on Aduioadvisor, as I bought those too, and they are pretty poor quality)?
I had a feeling those were the same ones. Actually, I thought the X-Terminators did a good job, except for when I stripped one of them. When I decided to go to biwire I had AP replace the spades with WBT midline bananas which have their own locking screw mechanism.