"MB" wrote in message
ups.com...
point taken.
It costs nothing to try, and it will be pretty obvious whether it is
secure or not. If they can be secured, they will certainly provide a
robust/heavy duty solution.


I don't mean to sound dismissive. I'm involved with Scouts and as long as
I've been involved I've come across adults who think that we can get away
with second-hand wolly jumpers, welly boots, tin cans and string and my
experience says that kids won't go with shoddy ideas any more. So when we
kitted out we went for the best we could get money for. That included poly
airbags all round. However, we are gradually changing to heavy duty bags as
the poly ones get punctured.

I've got nothing against folks who try "Heath Robinson" solutions, just that
I'm not keen on them myself.

Ewan Scott