Just wondering, why it has difference turn frames for a few turns? Isn't it makes more difficult to planning your next movement?

Thanks before.

The start of the game is meant to start your opener, in aikido mods your opener almost always exists of 2 or 3 turns, this way you can get a smooth start of the game.
The frames get higher every turn to prevent having extremely long matches I think, aikido matches already take a while, imagine it existing out of nothing but 10 frame turns.

If it doesn't make sense to you why you should start with short turns, a kick in aikido either can't be fully completed because you're standing too close to each other, and you can't try to 'defend' yourself while being kicked if you got 50 frames at the start.

Oh ok, that makes sense, that's all what I need.

Thanks for the answer.