Pass x250.5 - Biwire?

I know the x250.5 can't take bananas, so biwiring with spade + banana on each post won't work.

Can it take 2 spades per post? Will they fit? Desmond at pass told me the posts open about 3/16", so it "could" work, but I wanted to see if anyone has any real-world experience with this.

Thanks