Honestly, I have found, from my experience, that if a rooster is genetically predisposed to aggression toward humans, handling or not handling will make no real difference. He'll do what he's going to do. If he's really comfortable with you and you've pretty much babied him, if he's prone to aggression, he'll take you on sooner. If he's not, well, he'll just remain a good boy. All that said, when they reach the age they are breeding the hens, they have a job to do and it's best to give them space to do it, whether he's aggressive or not, he doesn't need to be distracted. Folks will tell you lots of advice to "fix" an aggressive male, but I truly believe that if he's truly prone to that, you will not change him, not in any permanent way and it will come out when you least expect it. JMHO.
I'm having to deal with a young male who is not from my own non-aggressive line, so an unknown quantity for me, who developed very early, way ahead of his brain, you might say, and it's taking awhile for him to figure out what he wants to be. If you check out my "Evolution of Atlas" thread in Pictures & Stories, the male in question is named Hector, a gift of hatching eggs from a super nice lady and friend on BYC. It sort of gives the evolution of Hector as well, how his aggression showed up early, along with his comb and wattles and dominant behavior at around 7 weeks old, and what I did with him and how he's changing now that he's 21 weeks old. He may just have not known what to do with his body-before-brains development since he seems better and better as time goes on. He may be a good one in the end, though I'm not "there" with him just yet, not 100% anyway. But, that's just if you want to read the stories, if not, no worries.
Unless you get a male from a line someone has experience with (and that won't be hatchery because you never know about them), you'll pretty much have to get what you get and hope that you'll end up with a rooster you can tolerate. I wish you all the best and I hope you report what happens with it.
