Shihan has capitalized on this opportunity. It can start with a non-traditional attack, sometimes a series of yokomen-uchi , shomen-uchi, and mune-tsuki attacks that can only be greeted with parries and blending movements.
Start with empty hand. Hook punches, straight punches, kicks. Get the pattern of attacks and responses you will be working with engrained in nage and uke.
Move to the bokken. Perhaps now it is yokomen-uchis and thrusts.
And then onto the knife. Multiple attacks with a training blade, trying to study not just what the attacker’s next move is, but the move after that, seeking a disarm and an Aikido technique at the finish.
Even the training blade changes the energy of a class. Nage’s focus is the blade. Uke’s focus is the blade. The world outside is forgotten. The universe shrinks down to you and your partner. Over and over, taking turns, it is the blade.
There is no air conditioning. The fans blur any noise from outside.
Shihan watches, stops the practice, makes corrections, demonstrates again, and you resume.
“Parry it this way.”
“Here’s that disarm, lay the flat of the blade on your forearm and strip it.”
“Turn and open your hips, take their balance and control the weapon, then throw.”
It is the summer of the blade.