How about skipping the edges of the hive bodies, only doing the rabbets?  I've
not tried the vasoline trick, but it would appear to be a fairly simple solution.

> >As Dave points out, vaseline should not be applied too liberally. It is also
> >important to ensure that the hives are vertical otherwise the supers could
> >slip. But I do believe that the benefits far outweigh the disadvantages.
> >
> In a completely non-migratory situation, out of places where strong
> winds might hit them, and on level stands, you may have a point.

--
"Test everything.  Hold on to the good."  (1 Thessalonians 5:21)

Tom Elliott
Chugiak,  Alaska
U.S.A.
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