Bananas vs Spades - for Jumpers?

I know it's well established that spades are the best when given the choice. But I'm wondering if that applies to jumpers too, when you would need to have two spades on a single speaker terminal - one spade from the speaker cable and one from the jumper?

I have Nordost Valhalla 2 jumpers with bananas on one end and spades on the other. I did this because my prior B&W 802 D2 speakers didn't tolerate two spades on one terminal all that well.  But I've since upgraded to Audiovector R6 Arrete speakers and the terminals would easily accommodate two spades on one terminal. I wouldn't bother asking this question, if it weren't for the fact that the bananas are so much looser in my Audiovector terminals than they were for my B&W's.

So I've pretty much answered my own question, I think, but I am wondering what others have chosen for jumper terminations.