I used (for a VERY short time) 1~3/4" webbing on my descender rings, It slipped like crazy in addition to the webbing stretching about 1" per foot per hour. The Poly 1~1/2" webbing rarely slips & stretches about 1" per 10 feet per night. The slipping of my set up may just apply to the round descender rings.
When you have a backpack on, no matter where you are, you’re home.
PAIN is INEVITABLE. MISERY is OPTIONAL.