you have NO idea how the jury reads a witness.
For some reason I’ve fallen into a pool of people who are frequently summed for jury duty. I‘ve served on four juries and even when cases seemed open & shut there is often dissent on the jury. While attorneys try their best to profile jurors and strike the ones that would be most inclined to take an opposing view sometimes people slip through. Also, I’ve heard of people who wanted to be picked and tried to game the system so they would be selected. While we can speculate what a jury might do we may very well be surprised.