There actually straight . they only appear curved , or broken .sometimes .
Check the index plunger spring ( underneath ) is to specs , while youre at it .
Thats what locates the camplate ( in gear) weak , itll throw out ( of gear ) .
worth checking for burrs and flatness in the positive stop mechanism ( with the straight curved springs ) while youve got it off.
Gear lever maybe wobbles up and down a bit off from centre , if ones gone . Feels sticky to the toe .
Late camplates have reinforceing straps across to avoid distorting from officer dibbles boot . I.E. camplates can spread , leaving accuracy displaced .
pretty easy to whip the cover ( inner ) off & hose out / check for scrap metal .Leaving the rest in situ.