- a case that betters and worsens. A roller-coaster is always connected to a suppressive person and will not get steady gains until the suppressive is found on the case or the bas~c suppressive person earlier. Because the case doesn't get well he or she is a potential trouble source to us, to others and to himself. (HCOB 8 Nov 65)
- a slump after a gain. Pcs who do not hold their gains are PTS. (HCOB 9 Dec 71RA)
- gets better, gets worse, gets better, gets worse. (SH Spec 63, 6506C08)