Funny enough I'm going to replace the current rings in the house with radials, I did mean radial in the workshop maybe 2, one down each side, the reason i intend to put 2 db's in the workshop was so i could isolate all the machines at night. The supply i have at the moment is only a 60A domestic supply (max size fuse for a half clip cutout), going to contact DNO tomorrow to get new cutout and upgrade to 80A, as far as i am aware Northern Powergrid don't fit 100A in a domestic property