I think the front edge is too tall, and the rear radius is too sharp. I also think the front angle is too steep.

I zoomed the image on the right to approximate a 1:1 scale and used an adjustable protractor and radius gages right on my flatscreen. using the slide's major axis as baseline I see the front edge being at 74° and the rear edge at 80°. Where the rearward edge transitions to the top edge looks like an 85° angle with a 1/4" included radius.

Cheers
Bill

__________________
Because they don't make a .46