Hi Guys, haven't posted for awhile. I have been using the home-built black box with two Lighthouse motors. Vacuum has been pretty good on my 4 by 8 Alpha PRS router, but the noise level is deafening. Also, the Lighthouse motors are only good for 500 to 1000 hours. I replaced both motors after about 2 years. Due to the life expectancy and the high level of noise, I have been considering using two Fein Turbo 2 shop vacs. However, I noticed that all of the newer Fein vacs have 1 1/4 hose connections. I wonder if I am going to get enough CFM to hold down. Right now I have a 4 inch PVC connection to the black box which steps down to 2 inch PVC for the four zones on my table. Seeking advise on whether I will get equal or better vacuum using two Turbo 2 vacs instead of two Lighthouse motors.