Greetings, WMI. I am probably going to purchase a new large-frame fixed-deck Stander this fall, and I was wondering if you are currently putting the Parker-Ross or Hydrogear pumps on them. My dealer has 3 floor model Standers, about 1 year old, in the low 40,000 serial number range; the 36" Stander has Hydrogear 10A pumps, like my 2006 36", while the large frame 52" and 61" have Parker pumps (the serial numbers on the 3 units are within about 100 units). I heard from another lawnsite member that you might be going back to the Hydrogear pumps on the large frame Standers (ref: http://www.lawnsite.com/showthread.php?t=246795), which I would prefer (if, for no other reason, than for parts interchangeability with my existing mower). Are you changing back? And if so, after approximately what serial number (so I can be sure I get the correct model)? My dealer didn't know. Thanks.