Thanks God, those straps were giving me brain ache. I was almost there but just needed to get the last bit right. I can now go and collect my first colony of bees tonight safe in the knowledge that the hive won't fall apart in my car on the way home! The local news will just have to go without that story!
I have these Spansets and do use them, but prefer ratchet straps for moves of wooden hives to the heather. Their strength helps.
Polyhives can be damaged by such straps as we saw in the video. I've been using these on the Paynes polynucs - they give good protection without exerting too much force on the polystyrene. Very easy to use, and you can get packs of two black ones in Tesco for £2.50.
PS In Tesco they're in the motoring section. You can get them elsewhere under the name Cam Buckle Straps or similar.