RE: crooked takeoffs
The gyros have their place in lots of the WW I and golden age planes because even with a good setup and good pilot, they are still hard to handle on the ground. Yes, as capo915 said, this is a hobby and we can all do it however we want. But any successful sport design had ground handling as a consideration in the design phase, and all of them will roll straight on a decent runway if they are set up right.