Best way to move TBH?

[bluegrass]

I am wondering if anybody has come up with a good way to migrate a TBH without breaking the comb. I am trying to run all Top Bars as I like them better and I usually don't move them so most of the time it is not an issue. But I am sure that down the road I will have to relocate a hive for one reason or another, so I need to develop a method to move them with little or no damage to the colony.

[Michael Bush]

Old brood comb holds up fine.  New heavy honey comb will break.  The hotter the more fragile the comb.  Do you get cool nights?  Are the roads rough?