So I think this is the right pump for me, and I'm still reading docs from "pump ed 101". If I understand Mark's Hydraulics 101, I should get ~78gpm with this pump on maximum given the 2" suction and 1.5" return in the spa. ~86GPM on high when running the pool (2" pipe both ways).. The Filter I'm looking at is Hayward DE7220 which lists a max flow rate of 150GPM so I should be good there as well, right?

I think my only concern is the Hydraulics 101 post mentions "Cartridge Filters: Most energy efficient and don't require backwashing. Best suited for areas with water restriction, high electrical rates and/or pools that use a SWG."

I use a SWG, how does that play into filter selection? Is it just a matter of the additional head loss created by the SWG or is there something else to consider?