Thanks both. Its encouraging to know we're not too far off. The fuse holder is a medium sized one we picked up in Halfords. Its the first thing in line of the positive side after the battery which I think is right. Will definitely look at spade connectors next time round as we've quickly found out that every gram counts! I think a velcro strap to help keep it in will be a necessary precaution. I'm not sure how much punishment the front blade will take as its only 3mm aluminium. I'd looked at steel but couldn't figure out how on earth you could afford that within the weight limit. How do others manage it? I think perhaps our wheels are on the heavy side but I'm struggling to see where else we could shave off that much weight. Lack of experience I expect. I'm looking forward to seeing some others 'in the flesh' and picking up some tips! Thanks again.