Towing with a Husky

Our club has a Husky on leaseback as one of our tow planes.

In order to keep the temps within desired limits on the Husky (I think they
shoot for 425 cht max) we have to tow at higher speeds than would be typical
for say, a Pawnee. This isn't necessarily a problem for glass ships but it
is for our 2-33s which we end up towing at speeds as high as 80-90 mph.

Does this seem typical for those of you who might also be using a Husky as a
tow plane? If not, what speeds are you able to tow a 2-33 at and what temps
are you typically seeing?

Thanks.

BDS