Thanks Beton for another very relevant and informative post. If this observation was to become viable in the long term you would need to work some other items into it. The main problem I see with this strategy is the price of the ones you are laying, but I will do some work on this over the weekend and I will keep you informed.

However, irrespective or how this strategy goes, the information you have provided will prove to be invaluable in many future laying strategies, so once again thanks - your efforts in extracting and providing this information I am sure will be greatly appreciated by not only me, but by many others on this forum.

Fred