Wide Receiver:
-D. Adams: 6.54
-J. Jefferson: 9.69
-A. Thielen: 7.52
-A. St. Brown: 7.14
-D. Johnson: 4.21
-T. Higgins: 4.16
-J. Chase: 9.81
-A. Cooper: 8.56
-S. Diggs: 5.65
-T. Hill: 9.39
-G. Wilson: 7.7
-C. Lamb: 7.45
-A. Brown: 7.14
-T. McLaurin: 9.57
-B. Cooks: 9.14
-M. Pittman: 8.24
-C. Kirk: 6.25
-D. Moore: 9.65
-C. Olave: 8.65
-M. Thomas: 9.12
-M. Evans: 6.98
-C. Godwin: 9.66
-C. Sutton: 9.89
-D. Hopkins: 4.94
-B. Aiyuk: 8.46
-D. Samuel: 7.92
-C. Kupp: 5.00
-T. Lockett: 7.7
-D. Metcalf: 9.6
-A. Brown: 8.6
So there is a 30 player sample.
9.0+: 10 (33%)
8.0+: 15 (50%)
7.0+: 22 (73%)
Sub 7.0: 8 (27%)
Sub 6.0: 4 (13%)
The average is 7.81.
The lower end guys:
-Davante Adams
-Diontae Johnson
-Tee Higgins
-Stefon Diggs
-Christian Kirk
-Mike Evans
-Deandre Hopkins
-Cooper Kupp
Here's my read on these guys: they are, by and large, ball winners (e.g. Evans), route/release technicians (e.g. Adams, Diggs, Johnson, Kupp), or both (e.g. Hopkins, Higgins).
So in other words, RAS scores correlate with success here but not as strongly as at TE or OT. And if you're drafting a lower end guy, you probably want to make sure that they are very savvy route runners or physically imposing ball winners. Drafting guys sub 6.00 CAN work, but it's highly risky.