I have a Delta 1hp dust collector that has been serving me well for quite a few years. The problem I have is with the 30 micron bags. I've looked at upgrading them with either new felt bags or possibly a canister filter top with clear trash bag bottom. It seem more expensive then I initially imagined which made me wonder about just getting a larger collector. I guess I'm wondering if these upgrades are worth the money, if they improve performance at all, or if I should wait until I can upgrade the collector to something more powerful.