“Theonly allowed practical drills on any Scientology course including PE are:

1) Modified Comm Course for PE
2) Original Comm Course TRs 0-4
3) Original Upper Indoc TRs
4) E-Meter drills contained in The Book of E-Meter Drills
5) Dissemination drills when I write and release them.

“NO other practical drills of any kind will be permitted.

“Other practical drills are abolished. Reason: They consume time uselessly, suppress actual processes and mess up data and cases. I did not develop or authorize these drills and have now seen that they teach alter-is of easy processes. They are not needed. They make poor auditors. I have just reviewed this matter thoroughly and have traced several training failures to these wildcat drills. Further, I traced several failed cases on course to them.

Somewhere along the line somebody went mad inventing "drills" and "TRs".

If this is permitted to continue, we will no longer turn out good auditors. The standard drills as listed above have proven sufficient for years.”

HCO P/L 16 April 1965, Issue II
Drills, Allowed
(OEC Vol. 4, p. 616)

“When in doubt do the usual, the routine, the standard.”

HCO P/L 31 July 1971
The Usual
(OEC Vol. 0, p. 257)