I want to upgrade my dust collector system. I was thinking about a SDD or SDD XL. My system consists of 30 ft of 6 inch pipe and four drops that reduce to 4 inches at the tools. I have talked to Oneida, they said they have had people use the XL and the HF collector. The reason for trying to use the XL instead of the SDD is the inlet and outlet size I will not have to reduce or increase the piping. I also plan on adding a Wynn filter. Would the SDD XL,Wynn filter, and the HF collector be a good set up. Upgrading to true cyclone is just not in the budget at this time.