Intersting that both Blondie and Stevie G have mentioned horse tape stretching and sagging to the ground, which I have never seen or heard of.
Both of you are in Australia I believe - is Aussie tape made of differerent stuff?, or maybe as in the UK we barely get above 20C for the vast majority of the year, the tape never gets hot enough to sag Anyone in the UK seen sagging tape?
Just had a quick look at cost of bare wire vs. horse tape - 200M wire £15.30, 200m white tape £13.60 (www.rappa.co.uk).
Just thought I would make this point(have lacked time lately to reply as too busy), but I have never used white tape here in Oz, only in the UK and if the posts are banged in well enough and the tape isn't tighten enough, then it sags(not my doing!)
Blondes in Western Oz where it gets to 47 degrees C some times, so that may aid to the problem of tape saging.
I used to get hot air ballons flying over my sows in Dorset and it scared the hell out of them, causing them to run through fences, so barbed wire who have been a night mare if used and have never needed it any way, which is why I also don't see the need.
Happy pigging to you one and all, in a beatiful cold Uk.