Here are my comments on the supposed " bad things about the HST". Don't concern yourself over it. If your tractor, for some reason develops a noise/squeal when moving in reverse then you can notify your selling dealer, and deal with the issue while under warranty. There are some parts that have been detailed by Kioti manufacturing,(Daedong), but to date nothing has been released to the public. They deal with a vibration which causes a harmonic dissonance and consequently a squeal like sound at times in SOME DK series tractors. A permanent solution beyond changing out a metal tube to a retrofit rubber hose aimed at treating the symptoms is in the works. When Kioti and Daedong have decided on the final method of treatment it will be released- to the best of my knowledge about this issue. Note: It is NOT an every tractor or every tractor in a particular series issue. Some are affected, most are NOT, and it's had ZERO effect on my tractor beyond generating an annoying noise at times, NOT constantly.
Best advice: go enjoy your new tractor and don't sweat the details.:thumbsup: