Any questions you have on wiring feel free to shoot me a PM. i was a 12 volt technician for most of my 20’s and am still in the business on a different level. One thing I’m sure you already know but I have learned doing trailer builds and probably the most important is your weight distribution...
I used to shoot a 5 pin. Switched to the trophy ridge react one pro last fall. I will never go back to fixed pin. Maybe upgrade to a double pin adjustable that’s all.
But to answer your question I found that I like a straight body because I can use it in my vehicle a little easier. I found angled harder to use in a vehicle for me.