The tines raise & lower too slow for my taste, and there is no adjustment for this. So I called Exmark about this tonight. They recommended I talk to a dealer, but as most of you know -- dealers don't know much about this machine to say the least. I explained to Exmark that I have to wait about 5 seconds at the end of each pass to allow the tines to raise (and almost as long to lower them). Otherwise I tear the sh$t out of turf. Then Exmark technical support told me they often mistakenly use the same fluid in both the transmission and the hydraulic system. (I thought wtf, but I didn't say anything cuz the guy on the phone was not pleased about my questions/concerns in the first place). He said the tranny (fluid) is a totally different system compared to the "hydraulics", and each should use different fluids. Bottom line: Exmark says AW-32 oil should be used regarding the hydraulic cylinder. So I plan to drain out the existing hydro fluid that Exmark put in and use John Deere low viscosity Hy-Gard fluid, cuz it's never let me down in the past. Thoughts? p.s. I wish Wrench Spinner would chime in on this one.