I always believed that the front of a chin rest was there mainly to lift a sweaty chin off the varnish.  The front has other features, none good.

In search of a solution, I had a constant watch for a chin rest with a really "serious" back edge.  I found something in FiddlerShop that looks very promising.  The tall Stuber. 

It did not take much trial to appreciate how this chin rest works:

There is no way one could pull the violin away from the chin in a forward direction.  The "bump" is simply too big for that to happen.  However, I think someone slightly built might want a scaled down version.  (There seems to be a smaller/lower version also listed on FS.)

The chin rest is good at gripping the jaw (contour) which might add something new.  The chin rest wants to keep the violin pointed in a certain direction which in my case is about 45 degrees left .....which is about where I play anyhow but there is less "wiggle" room than with a flatter rest.

Bottom line ... seems to be just what I was looking for.