Fetching full CVS tree (-current -stable) by /usr/bin/cvs

I'm using cvsync currently, but it is not so secure as SSH wrapped
/usr/bin/cvs fetching.

According to OpenBSD FAQ: https://www.openbsd.org/anoncvs.html
I can follow -stable -or current by executing separate commands and it
seems I should have to separate directories for -current and -stable.

May I fetch from public available anonymous CVS servers full cvs repo
with -current and -stable branches to have them locally by single
/usr/bin/cvs command like: cvs -qd anoncvs@anoncvs.ca.openbsd.org:/cvs
checkout

Please advice