Not sure I totally agree with this... I find that patience in
using the polar scope well gives me better results than patience
in drifting using a C11 at F6.5 or so. Polar scopes can be finicky
things, but once you get the hang of them you can do some pretty
decent alignments (again with patience... did I mention that
patience was required?:-).
I've gone as long as 1hr45m (actually, last weekend) with
scope alignment with no noticable trailing.
Probably depends on which technique you are most comfortable
and confident with.
Pete