I have a spider who produced a bumblebee last year. Both of them are terrible strikers!

I've just accepted this as their version of a "wobble" (both of them don't show visible signs of a wobble except at the moment right before a strike) - we always feed them in a plastic feeding tub. I thought the plastic would be a "softer" smack in the face when they miss the rat compared to glass. We're always more vigilant with the tongs with those 2.