May be more expensive but Postcrete is certainly easier on the back and sooo much quicker. Can even be used in the Rain, one bag per post.For those that didn't get the 3 dry, 3 wet reference the answer is concrete. I had intended to do more post holes today but it was too windy. I did however have quite a good night on eBay last night and think I've now secured almost enough track to complete the task.
JonD