Do the Stanford scales tap the “classic suggestion effect”?

Weitzenhoffer has recently challenged the adequacy of the Stanford Hypnotic Susceptibility Scales, Forms A and C (SHSS:A, SHSS:C) of Weitzenhoffer and Hilgard (1959, 1962) on the grounds that they do not tap the “classic suggestion effect.” The effect in question concerns the experience of nonvol…