I have common bermuda with some type of hybrid in a section of the yard. The hybrid IS slowly pushing out the common once I bought a reel mower and kept below an inch. It may be hard to tell in this pic but from the middle of the picture and to the right is the hybrid and to the left is common.
Just a side note. The picture you posted looks like torpedo grass to me, not bermuda.

Just a side note. The picture you posted looks like torpedo grass to me, not bermuda.
