Look forward to your tutorials Patrick, just one point to remember for those contemplating an open top base board. Models do come off the track and they will go down the hole in the open top, only happened to me once, that was yesterday and my GSR B2a plunged 18" onto some shelves below. The shelves won!! and I now have some severe repair work to do. I shall fix some sort of netting to stop this happening again. And yes I do really like the open top concept it"s worked for me for several years.
Mike