I am looking for some advice on dust collection which most people on this forum know much more than I will ever understand. I just order a new 3HP C|Flux Laguna dust collector for my basement workshop. My current thought is to run 6" 26 gauge metal duct work to my machines and convert to 4" at the machine where ever I cannot increase any machine ports to 6". The Laguna 3HP collector has a 8" inlet (50.27 sq in) with a 4" x 3 ( 12.57 sq in x 3 = 37.71) adapter on the inlet. If I take off the inlet adapter should I use a 8" to 6" reducer (28.27 sq in) or use 8" duct until I need to branch off lines and go to 6" from that point. I will probably have 2 main branches running no more than 25'.
Any advice would be helpful. I am tired of spending money on dust collection (HF/Wynn filter/Thien baffle) only for have a dusty shop that has caused me some issues when I worked with cedar this past summer.