Gear lever rubbing surfaces

[Roadster_Robbie]

1st 2nd Gear change MK3

Hi after reading endless threads on difficulty on 1st 2nd gear changes,just come across this thread on the Miata site particularly the bit about reverse lockout plate.Just wondered if anyone changed this part to any success Read post #20 https://forum.miata.net/vb/showthread.php?t=715639

The plate referenced in this topic?