This chapter looks at fellow-travelling Calvinist conformists, that is to say persons who had always espoused a Calvinist or reformed view of predestination, who, on certain issues and in certain modes, could sound like any moderate puritan, but who, on the issue of conformity, took a firmly anti-puritan line, and consequently on certain other issues could sound just like card-carrying Laudians. It does so through the analysis and comparison of the careers of two such men, Robert Sanderson and Humphrey Sydenham, whose views on the theology of grace, conformity and puritanism, and indeed on some of the signature values of Laudianism, are analysed and compared.