The problem with the way RAS releases their props is that Prop Builder moves the number and the price immediately.
Yep...that's one of two methods I like, other doesn't always get changed immediately but I've had solid success with. RAS Prop Builder is great if you're in immediately. My hope is always that some book is slow. I always check before I post, last thing I want to offer you (or anyone else) is a stale line.