Rain and busy today, so reduced to an other comparison shot with 1.7. Had to go for B&W as light was a mix of natural and artifical and I just couldn't get white balance right.
K5 M50/1.4 ISO200 f1.4 1/60:
This case goes clearly for 1.7. Both shot wide open. Bokeh on 1.4 is too soft for this and looses the shape. It also lacks contrast, thought I added a lot in PP, and goes a bit too misty.