I think I will get 833j but blueeyecon quality went down. They don't seem the same however I didn't see 833j in person yet.
How do they fit you? Judging from the pics they look slightly lighter than 801c.
I noticed 801c are much more low rise than any other thavars I tried. They are quite tight in waist and thighs and a little loose in caves.
Btw there was one seller from Australia who had brand new 801c for only $106usd but I waited too long and he took them out from ebay.