If installing APT Woodchuck, will it update from /etc/apt/sources.list?

I usually have only enabled Nokia, OVI, CSSU and Extras repositories to avoid so long updates when using HAM, while for FAPMAN I have also enabled testing and devel as it's much more faster and friendly.

If APT Woodchuck use regular sources.list, is there a way to avoid apt worker to also update regularly? (even changing the gconf key I have found it updating from time to time).