Well to correct you on "there is no Reserve Drill Sgt School"............ There is, the school is in FT. Sill, Okla

The 95th Division (Institutional Training) is a Major Subordinate Command of the US Army Reserve Command with Headquarters in Oklahoma City, Oklahoma at the Harry L. Twaddle U.S. Armed Forces Reserve Center.
The Division has over 3,500 soldiers assigned in Army Reserve centers located throughout the states of Oklahoma, Arkansas, Louisiana, Texas, Kansas, Nebraska, New Mexico, Missouri and Iowa. The Division consists of an Infantry (BCT) Brigade, an Artillery (FAOSUT) Brigade, a Training Support Brigade, four Institutional (TASS) School Brigades, a Provisional Senior ROTC Brigade,
a Drill Sergeant School, the Division Headquarters and Headquarters Company, and the 95th Division Band.
In peacetime, the mission of the 95th Division (Institutional Training) is: Support of the Army's Training and Doctrine Command, TRADOC, by conducting Field Artillery Initial Entry Training and Basic Combat Initial Entry Training at the Army's Field Artillery Training Center, Fort Sill, Oklahoma. The Division's Institutional Training Brigades provide soldiers of the Army Reserve, National Guard and Active Army with Military Occupational Specialty (MOS) and Professional Development courses under the The Army School System (TASS) to prepare them for increasing levels of responsibility and readiness. In the event of mobilization, the Division will provide Drill Sergeants and TASS Instructors to backfill and augment TRADOC installations and the Army Medical Department (AMEDD) Center and School, as well as continue to provide instruction to members of the Reserve not affected by the mobilization.
Thats my 2 cents worth.........