My advice:
Penis Enlargement because you want a bigger cock...not because you feel you NEED a bigger cock. For me, Penis Enlargement is about being more confident and enjoying sex more...not chasing after some magic number so that I can simply feel "adequate". I do girth work because it increases stimulation during sex for both of us...not because I think I need it. I do length because...well, it looks cool and makes me feel like a stud! :D I already hit my gal's g-spot...and sometimes I even bottom out, too, so more length is not a requirement. It's a bonus.
Don't believe anything you see, read or hear about in the media concerning penis size. 99% of it is utter bullshit. I would say 75% of "big" male �naked people movies� stars are not hung...they're just short, skinny guys with normal size peckers. Have you ever really looked at Peter North? He looks huge, but he's like 5'3 and small framed. If I was a foot shorter and 100 pounds lighter, I would look huge like that, too! All the stories you read about women wanting a big rod are true...but for a woman, a big rod is a 6 incher.
Finally, it's really not that big a deal. I approach Penis Enlargement from the vantage of it being cool and fun...not as a job...not as a means to becoming "adequate". For me, that makes all the difference in the world. I'm sure your lady thinks your ding dong's a king kong, too, so just do Penis Enlargement as a way to have more fun with your dick and her pussy.