OK, last year I had my pool on a sand pad over clay soil. By the end of the season the poles where sinking in and the pool was leaning. So, this year we have a 5" concrete pad poured in the same location and have the new Heater, Sand Filter and SWG all plumbed in and fully operational. I ended up running two jets and splitting the water before the heater. My pressure on the Sand Filter was high and it turned out that one Intex Jet was to restrictive.
It should be noted that you can't use the newer Sand Filter with the SWG if you have a Heater. The SWG needs to be in line after the Heater per Hayward's instructions