Thanks for the honest reply. I know a few people who attend SSPX liturgies, and I am already asking them what Fellay meant. Meanwhile your previous post has made me want to read Saint Pius X on modernists. :-)
St. Pius X - Pascendi Dominici Gregis - On the Doctrines of the Modernists.
A. Vieban, S.S. - "Who are the Modernists of the Encyclical?" - American Ecclesiastical Review.