Took the boot off my shifter and took a look. Found an understanding of what's going on. You'll see in the picture, the shinny wear mark, where 2nd is too far right of the alignment rail, aka same as the reverse lockout rail, by about 1/4" and is why I keep hitting 4th instead of 2nd. The rail is held in place by four screws and I don't think it's made to be adjusted. I don't see any slots in the rail holes where it could be moved. So now I figure it's either shifter wear or has something to do with the reverse cable adjustment. When I make the Miller Special Tool 9120 i'll check adjustment of the reverse cable.