Hooked it up yesterday and plugged the shop vac into it for the first time. The combo actually did a good job of clearing the dust and shavings. Had a very small amount (less than a palm full after reducing a 6+ foot long 6 inch wide 4/4 poplar board to 1/2) collect on the in-feed table, nothing on the ground (until I brushed the table off <g>). Would think it would do even better if I changed the dust collection chute around to us the 4" fitting and hooked it to one of my delta dust collectors.