I do like the bumper.
The sharp angle at the end of the butt cap will probably show some nicks and marks faster than a nice radius there. But aesthetically it sets the cue apart.
Being delrin it's not likely to chip, but it will show wear there earlier because of that angle.
I don't dislike that angle but I know living with it in the real world will require a little more care. But not nearly as much as a bumperless design.
I think the brown bumper goes well with the brass, and it is a bit proud of the butt cap which will help minimize the consequences of that angle at the end of the butt cap.
I don't know if all that was in your thinking for the design, but that is the outcome I see.
To me it looks like you knew what you were doing when you did it and there is reasoning behind the design both structurally and aesthetically.
:smile:
.