Hello Again, Couldnt post for a while. Seroius work pressure.
The method I used was very simple in the end. Once all the blades were the same weight and root and tip weights the same I mounted them and spent a bit of time with tip spacing. All simple so far. Then I brought each blade in turn to 3 o'clock position and found the heaviest blade as it fell from 3 straight awaywhen I placed a 7oz piece of lead on the edge..I marked the spot where the lead was. The other two were then set at 3 the lead strip was placed on the edge of the blade and moved out slowly till the blade just started to move down.I marked the spot and repeated it with the other blades. I then measured from the centre of the hub to the marks. the blade withe the shortest measurement was the lightest etc. I then added weight to the roots and kept repeating till all measurements were the same. Simple and not a lepreachaun in sight!