yep, The EFI seems to be a much better runner. This one also has a new style transmission. There is much less power loss on turning and low gear is nearly a zero turn (see video.) I went with HDPE type track that is very light and wide. Much lighter than rubber and will probably keep it on. The HDPE will spin around on hard surfaces easy as it doesn’t scuff and give me the traction and flotation when needed. I looked into 2 hydro machine before choosing this one. Hydro is nice in some ways but not ideal at all times. Control is excellent but there are several things I didn’t like
hydro whine....though you get use to it, it is a bit annoying, esp at any speed
heat, even more than an Argo (which are warm), many on the market still have some cooling issues as the fluid gets quite hot. Due to the body design all of these machines are tough to cool
speed, you need a big motor, big pump and big wheel motors, fluid/tank and some additional water or air cooling to get some speed going, this is weight and heat. In the end it is still slower than the argo or max’s. (Real world not dealer quoted speeds, trust me) The hydro machines were bigger and heavier (to the point that several have sank and the there is some debate about float ability in a couple of models.)
Price, the hydro's were starting at around 30k, no dealer support or good parts support. Many times in reading, owners were left to troubleshoot on their own
Simplicity, in this system, the chain is quite beefy (750 hdi) and as time as shown, with REGULAR maintenance, is quite reliable and easy to fix. There are nightmare stories of criss-crossing hydro lines all over the place and a burnt wheel motor or broken line leading to a nightmare/fire. Hydro may be better suited to an industrial application where u can just use it till it breaks and not worry about maintaining it.
Finally, one prior owner talked to me that his hydro machine was good but there are times and places the Argo could go that the hydro couldn’t. If you need any sort of start momentum to get you over something, a hydro machine does not do that well as well due to the fluid drag in the system. ( It is great for a stopped zero turn and individual track control though) but as the video shows, the new transmissions are getting better. The T-20 in the max is great and argo has the new Admiral trans.
In the end, I went with the Argo and could have gone hydro but felt it was best for me. I would call the system just 'different' not old as the hydro is not a perfect solution (yet.) IMHO