I have used a Viking Blade The Admiral Brush Holder for some time now. It is heavy weight and nice quality. However, my Shavemac Germania brush would not fit into the holder easily with the factory gap. I wanted it to fit in without having to push to hard, rub the hairs, and deform the knot. I used a Dremel tool and widened the gap and also polished the entire holder with a Dremel tool brush. I followed that by hand polishing the entire holder with a micro fiber cloth and Blue Magic metal polish. I thought I would share in case anyone else has experienced the same problems getting their brush to fit properly. It now fits easily without the knot hairs rubbing while pushing into place and keeps the knot shape natural. Mullard