OK run yesterday. Brought home a truckload and had almost 600 gal from others. Took it to 16% and made about 25 gal of syrup in 1.75 hrs. Right on the edge of the D/VD line. Downside to having a 600 is it dumps like 20 gal of sweet permeate into the head tank when doing a sugar rinse at the end of the night. So I may have started with 16%, but ended up something less than that.