Sorry Daz, that was not meant to be read as a sniping comment. I was genuinely offering the opportunity to any posters from the subcommittee to correct me if I had overlooked the actual reason why the celtic solutions were not considered. I thought it over and couldn't come up with any myself but I freely admit that no-one has all the answers in any given situation.

The beauty of a forum is that by encouraging others to respond, one's own potentially blinkered view of something can be enlightened. I learn lots by listening to honestly offered views such as yours.