This is probably a pretty trivial choice from what I have read, but figure I would ask the experts. I am going to pull the trigger on a replacement pump and going to go with VS i the form of either Hayward Super Pump Vs or Hayward Max Flo VS. Pump is maybe 6-12" above waterline, about 10 feet away. All plumbing currently 1.5". Skimmer line is about 15ft from pump, main drain about the same (8ft deep end). Single 1.5" line for 3 returns and a dedicated 1.5" line for pressure side cleaner (Polaris 280 with booster). Currently have a 24" sand filter that shows 20psi when backflushed.
From what I have read, the max flo might have a slight efficiency edge at "medium head" which I am guessing is about where I am operating. I like that the Max Flo VS has 2" ports as I am contemplating a larger filter if I can pick one up on Craigslist for a deal (would go to 30" sand, perhaps Tagelus 100D or Hayward S311SX, Triton II if a good deal can be had) and would likely change pool pad plumbing to 2" at that time.
I understand that the newer versions (2602VSP an 2302VSP) have programmable timer / clock as well. I don't have any other automation aside from a timer.
Any input would be most welcomed.