Is the balltop of your Seimitsu (LS-56/58/60/62) protruding from your backpack when moving?
The (LS-56/58/60/62) NT 'Shaft QR' from Seimitsu is the solution to this problem.
This new removable joystick shaft (LS-56/58/60/62) has been designed to meet several needs.
1/ Make the shaft removable to make it easier to transport your arcade stick.
2/ Adjust the height of the shaft with washers.
To remove the upper part of the shaft, simply unscrew it (requires access to the base of the joystick).