Strike? Some Transit Workers Not So Sure
Prospect of bus and subway strike in New York City causes no big sense of urgency or crisis among rank-and-file transit workers; few voice much enthusiasm for a strike, and many say that for all their grievances against Metropolitan Transportation Authority, they are uncetain about the judgment of their union leaders; they, like transit users, suspect that charged talks of strike preparations are simply bargaining-table bluster and that both sides have too much to lose by failing to reach an agreement; some riders express sympathy for union's demands, if not for the full 27 percent pay increase over three years; photos (M)