Is that the official HKS shift pattern? Because I’ve driven 3 different 6 speeds, that have 3 different patterns, and none are like that one, so I’m willing to bet there’s atleast 4 if not more variations.
I’ve driven:
1 3 5
2 4 6
And you have to push down on first gear to engage reverse
1 3 5
2 4 6 R
Where reverse is just further out than the rest of them.
And finally, the G/350Z:
1 3 5
2 4 6
Where you push down on 6th to engage reverse.
Try pushing down on 1st and 6th, it may be a 6 spd after all.