[flybouy]

I could understand a miscommunication if they were saying " 4 or 5 degrees" and sounded like 45 degrees. If they truly said 45 degrees I'd question their sanity. I don't know how you would get the coupler to latch at that angle. Every WDH I've seen or read about was a 15 deg. tilt. But maybe it's just me, I'm not installing them for a living.