Well done Tenson. The covering of part of the table with an impervious sheet works well. A friend of mine has arranged a polythene "roller blind" which extends from one end of the table - he just pulls it out to whatever length he needs and that works well. To improve your suction you could use a round rubber neoprene gasket seal around the edges of the mdf sacrificial board. I know that you will find having a vac table a big advantage. G.