Originally Posted by slothy89
I think the main drawback of a longer tail is that during forward flight, it acts more strongly like a wind vane, and will take more effort to make it turn.
A shorter tail will improve responsiveness since it has less front-to-back resistance. Also a longer tail mean larger turning circle for the tail, so while the tail will have more "leverage". Even stationary pirouettes will be slower as it has to travel further to complete a rotation.
Food for thought
This is an awesome explanation and really make sense... thanks & cheers...