Abstract: A bowstring release for balanced release of the bowstring of an archery bow includes a pair of movable jaw members. Each jaw member includes a pair of lower and upper engagement portions spaced from one another in the linear direction of the bowstring in its uncocked disposition. The upper and lower engagement portions of the jaw members are movable into engagement with the bowstring above and below the vertical midpoint of the bowstring. Accordingly, when the nock of the arrow is disposed at the vertical midpoint of the bowstring, the bowstring release device applies substantially equal drawing force to the bowstring above and below the nock of the arrow during cocking of the bowstring and simultaneously releases and bowstring with a balanced release.

Abstract: A performance appraisal and training system employs a survey arrangement for procuring performance appraisal data indicative of the performance of a user to be trained, and a data delivery medium for providing computer-readable compiled performance data signals indicative of compiled performance data of the user. Feedback presentation memory components are provided for storing prerecorded feedback display signals indicative of a group of motion picture vignettes illustrative of various situations resulting from various types of performances. A computer responds to the performance data signals and to the display signals for displaying to the user both the compiled performance data and selected corresponding ones of stored motion picture vignettes to illustrate situations resulting from the past performance of the user.