The width of your penis is brilliant and 6 inches of MSEG is very impressive.
I would advise normal jelqing (500 or more) in addition to some Slow Squash Jelqs as this should give you both length and girth.
I would not worry about overkill, you will still find women to sleep with you.
I am curious though, how have women reacted to such a wide penis and also have they enjoyed the sex?