SSQA adapter angle question

[Firebrick43]

I am drawing up a Skidsteer quick attach for my 47 loader on my 2020. Any way found the SAE standard to the attachment plate but as some of you know the loader side has no such standard. So question is, what is the angle measurement of your QA plate/adapter.

First I thought it should match the 45 degree angle on the attachment but then I thought if the attachment was at 44.5 degrees and my adapter ended up at 45.5 degrees things could be difficult. Some pictures I have seen also looks to be 40 degrees.

Your help with an accurate measurement would be helpful

 

[Arbo]

Top is 45*, bottom is 120*. 16" from angle to angle.

 

[Zebrafive]

I would make the top angle 40-43 degrees, the bottom 115-120 degrees.
You want to make sure the top engages fully, and the bottom does not hold the attachemnt out. (if angle is greater than 120 degrees)