I don't see any reason why you can't cull more than once, if you want to. For now, I would cull the mean ones and the Sussex. Because of the diverse qualities you are looking for in a rooster, I would then keep the best flock leader (Dauphin) and the best bird for breeding (Gautier). I think your plan to separate Gautier into a breeding pen when you are ready to get into breeding, sounds great.
If Henri and the little silkies are well tolerated, then I don't see a problem with you keeping them for now. As time goes on, you may have problems between the roosters. You can certainly cull again, then, or set up separate housing, depending on what the problem is. I don't think you need to force yourself to make all the decisions now. Just be prepared to separate on short notice.
There are a lot of different criteria people can use, when culling. It just depends on what's most important to you. Type, temperament, vigor, productivity. It's all important, but it's all a trade off, too. This is also not your livelihood, it's your hobby and these are also your pets. So, I don't think it's unreasonable for your personal feelings to be a criteria.
Your posts seem very well thought out to me. I say, go with your instincts, do what you're comfortable with and see how it goes. You may make different decisions as time goes by and your situation or plans change.
If Henri and the little silkies are well tolerated, then I don't see a problem with you keeping them for now. As time goes on, you may have problems between the roosters. You can certainly cull again, then, or set up separate housing, depending on what the problem is. I don't think you need to force yourself to make all the decisions now. Just be prepared to separate on short notice.
There are a lot of different criteria people can use, when culling. It just depends on what's most important to you. Type, temperament, vigor, productivity. It's all important, but it's all a trade off, too. This is also not your livelihood, it's your hobby and these are also your pets. So, I don't think it's unreasonable for your personal feelings to be a criteria.
Your posts seem very well thought out to me. I say, go with your instincts, do what you're comfortable with and see how it goes. You may make different decisions as time goes by and your situation or plans change.