Greetings!
There's one big annoyance about Aikido trees: It has three special moves that require off-balance state to be performed. It wld help a lot if you cld change one of them (let's say Counter Throw or something else) to a different state. It wld make the style a bit... versatile instead of grabbing all the time. Also Aikido has an unfair disadvantage towards the other MA combat styles: Using one of the off-balance moves triggers re-use timers of all three of them... other than Kungfu or Karate that can use two moves in one dazed or staggered state.