Yes I appreciate this doesn't answer your question 😉, but if you're open to other suggestions here's one.
I was an avid Bushnell user for a few years until a pro friend did me a deal on a Golf Buddy laser. (LR5?)
It does exactly the same job, I've had it a couple of years and would happily get the same brand again. https://www.ebay.co.uk/itm/233343257537
EDIT: Although on closer inspection that one has the slope (spit) feature.