There really is no advantage to bending your cue after the break.
The best break tip I have ever heard originally came from Charlie "Hillbilly" Bryant. Basically, he said that you should follow through and try to keep your tip from touching the table. What this does is keeps you flat through the cueball, which helps keep the cueball from jumping before it hits the stack. This is huge!
When you break, like you said, you want your tip to stay on the cloth. You also, don't want bridge movement. How do you move your body forward, keep your bridge hand down and tip down and follow through without bending a cue?
Look at the attached photo from my previous post of Charlie. After this break shot he says, "I couldn't break real hard, I'm playing with my playing shaft, ya'll. I don't want to take a chance warping it"