What do the qualified leccy's make of this new item (to me anyway) Chocbox D46538-73 on page 189 top right. I got one with an order on friday and found it very good as you use terminal blocks (the way I used to until reading this site) then this box has cable clamps in it and dust covers each end. Works a treat. Clamp the cables and shut the box, job done. Any thoughts from the pros?