I've always seen the 1-2 shift as a three part exercise. Push straight up to neutral, release hand/grip pressure on shifter for a Nano second, then push forward. A properly adjusted ZF will self center very quickly. This is the first instruction that I provide anyone who I give an opportunity to drive my car. As we know the diagonal shift approach doesn't work. Despite this, I suspect we have all seen shift gates where an attempt has been made to improve shifting by angle grinding the gate between 1st and 2nd. Intentions may have been good, however, they didn't grasp the mechanics of the ZF.
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