We haven't had much trouble with granulated honey in combs
in recent years.  If one has a great number of frames
relative to the number of hives operated, it might be a problem,
however we simply uncap - or actually scratch - the offending
combs and place several in the centre of each third box, separated
by an empty comb and place them on hives at supering time.  We use exclude
excluders and super early for swarm control.  We never notice any
sign of granulation at extracting time.
A neighbour of mine - a hobbyist with one hive ( a hive that gave
400 pounds every year - putting me to shame) - used to soak granulated combs in
water and feed the water ba-
lated combs in water and feed the resulting syrup to the bees.