Banana Plugs too narrow

Here is a suggestion on what you can do if you have a leftover banana. :-)
https://news.sky.com/story/banana-duct-taped-to-wall-art-installation-sells-for-120k-in-miami-118792...

Out of curiosity, what speaker cable are you using?  If I were truly smitten with the cable I'd inquire into sending them back to the manufacturer and have them replace the bananas with spade connectors.  A few years ago I did this with a pair of Kimber cables.  I think it cost me about $60 shipped working with Kimber. 

Wouldn't risk going bare, even if you are pretty sure where that speaker has been, it could have had a spade on the side. And.. wait, is this a 3-way we're talking about? Or ... five???

When I’m plugging into my speaker, I prefer the D’appolito position.
Too much? ok.

Are they locking bananas? If so, you need to tighten the collar after you slip them in. This expands the post for a tight fit.