For what it is worth, I have had a SSHD for two years, and love it. I buy 20 cord loads of 8' oak to process and sell. The Subaru/Honda choice is a hard one. I use a GX 160 on a conveyor, and a GX 200 on a previous hydraulic splitter. I also have a ten year old Polaris quad with a Subaru. I went with the Subaru as standard on the SS, no regrets.
Personally, I think the two handed safety feature 'could be' dangerous on a kinetic splitter. Here is why. Something that happens on hydraulic and kinetic single wedge splitters is that a round can ride up the wedge. It happens, usually on a knot. On hydraulic splitter it happens fairly slow. Not true with kinetic splitters, it happens quick, surprisingly quick, summersaulting the round backwards, face height, towards the handle. Not where you want both hands. I want one hand on the control lever, and one hand on top of the round until the wood engages the wedge. I can feel what the round is doing before I can see it move upwards. An important thing to do is to work upright, not leaning over the work piece. Despite this occasional happening, kinetic splitters (which ever one you choose) are a delight to use because of their working height, fuel efficiency, and resplitting ease. A kinetic splitter will eat that truckload up.
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