Importance of CASPer for US schools

Hi everyone! Im a Texas Resident and will be applying in the coming cycle. I just realized today that many TX schools in addition to OOS schools now require a CASPer score. How important is this in terms of the whole application process? I know in Canada it can make up to a third of an applicants overall "score".
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Pre-Medical - MD Source Type: forums