Double Tow

The subject of double tows has been discussed a few times. I've re-read
the old threads and I have the gist of how it's done.

It's a little unclear from the old posts if double tows are a
reasonable way to get gliders in the air more quickly in the course of
routine launching. On our busiest days, my small club finds the wait
for a single tow plane too long. No other tow planes are available.
And, while we are generally enthusiastic about ground launch, it is not
an option at our site.

So, assuming plenty of ground crew and competent pilots, will double
tows overcome the extra set up time ?

Is anyone out there routinely using double tows ?

Doug