The 45 degree back is easiest on your tires too. It’s a much smoother transition into the space with far few pull ups when done correctly. If I am not heavy, the 41 foot mark over the back tire provides enough overhang to back tightly without worrying about your right side hitting anything next to you. Just chase it smoothly and you are in like Flynn.
I usually kept my tandems just so back there as if it was two feet shorter than a full 48. The result is that there is a point forward of those axles and tires but not as far up as the middle lower yellow marker center that I use to guide towards the sight side corner of the semi next to the spot I want. When done just so I either follow it in one move or end up doing a pivot as a option if I need to just before following it back into that spot. Im not trying to confuse, just emphasizing that I like to have options in battle so to speak. If door A wont open, proceed to door B as you go. It does not eliminate the oppertunity to always stop and get out and walk back there and look. I would do this a thousand times if I have to. They can trash talk all they want to. lol.