RE: Is it a shooter?
It is completely your call if you want to shoot him, never let anyone else opinion dictate what you can or cannot shoot.
The "if I dont shoot it someone else will" statement has alwats bugged me. Look at it this way, if you shoot him, you know he's dead and wont be bigger next year. If you let him walk there is a chance, no matter how slim, that he does make it.
Bottom line, if he puts a smile on your face, then you go right ahead and take him.