Quote Originally Posted by David Hostetler View Post
... Reducing from 6" to 4" down to 2.5" is not particularly effective. I've tried it, the results were UGLY... ...
Amen! Don't expect "shop vac" performance. I have that setup for my router table fence port and it's OK because of the specific duty. When I use the 2.5" port with a shop vac hose on it, I can pick up the usual dust and chips from the floor, but it's far from being as effective as a shop vac.