Have managed to set up my trailgator on several bike combinations. You just need to follow the instructions and use a torque wrench, always seems to work well for me.
Having said that I have seen lots that are poorly set up, probably because:
This is not a rocket ship, nor rocket science, how hard can it be?
Who needs instructions, I have achieved that heightened state of enlightenment as to how things go together because I am a (insert one of the following):
rocket scientist,
designer
engineer
mechanic,
expert DIY’er,
just smarter than the average bear
I do have a “man card,” after all, I should know how to use tools and put things together
I wouldn’t even consider that this could go together any easier than how I would do it