With respect to RDL seats, whether or not an they will move you forward depends completely on how any given RDL seat was made, not on the fact that it is an RDL. All RDL seats are custom made to the original purchasers requirements and desires. If that person wanted to be moved closer to the tank it will have been made with the seat pocket moved further forward. Conversely, people with long legs will have had it made with the seat pocket as far back away from the tank as they deemed desirable for them.