Just want members thoughts on the following pole. I was thinking of Galvanised Steel pole for my future Megatree. Inground Galvanised Pipe: 1m long - Outer Diameter of 60.3mm and Inner Diameter of 51.3mm so a wall thickness of 4.5mm with a few bags of concrete holding it in. Aboveground Galvanised pipe: 6.5m (with 1m of it slotted inside the Inground pipe) - Outer Diameter of 48.3mm and Inner Diameter of 41.9mm so a wall thickness of 3.2mm Is this an over kill or not strong enough? Would I need guide wires. cheers in advance.