Andrew Sarangan wrote

OK, now I'm confused. If you triple the correction, wouldn't the inbound
turn be less than standard rate? What am I missing here?

Well...ignoring the turns for the moment, using the same drift
correction for the outbound leg as used on the inbound leg (with
an opposite sign of course) would result in parallel tracks. This
is one times the inbound drift (1x). Now, for a one minute pattern,
there are two standard rate turns, each requiring one minute to
complete. The distance blown off during each of the turns is the
same as one would be blown off during one of the one minute strait
legs, requiring an ammount of drift correction on the outbound leg
for each of the turns equal to the ammount used for the one minute
strait leg. All adds up to be three times (3x) the inbound drift
correction.

Yes, even the old AC 61-27C, Instrument Flying Handbook had it wrong.

Bob Moore