I think Im making fat chickens!

Just butchered some of the roosters in the grow out pens who didnt make the second cut and boy were some of those boys fat!
We skin our chickens instead of plucking them and I couldnt believe the internal fat that was in them! Our hands were greasy when we wer done. Im sure they will taste fine and tender but now i am a little worried about how much fat I have put on the roosters I am keeping for breeders...and maybe the pullets are the same?
Tricky to produce standards that have been fed enough to reach their full growth potential but yet not end up with fat unproductive birds, I imagine the roos will lose lots over the winter and during breeding season but I do worry about producing excessively fat pullets who will not lay as well and may be prone to prolapse.
I was feeding about half grower pellet and half whole spring wheat.
Is it the wheat I have to go easy on or the grower pellet?
OR maybe less of each?
I was feeding all the greens from the garden as well.
Maybe I should make sure the pullets get lots of free range opportunities when I can, they get lots of exercise running after those bugs, but then I bet those grasshoppers etc are chock full of calories!
What do you thinK?

I have no useful advice on what you should do differently...I am just very jealous! I cannot seem to put any fat on the roosters I am growing out. I processed the first batch, and they are long and lean without an ounce of fat.
I assume it is the grower pellets in your feed providing the extra calories. Well, that and I suppose the hoppers. I have mine on a mix of ground wheat, whole wheat, barley, peas and a bit of oats. They are growing well, but definitely no fat.

are your grower pellets concentrated, like 35% protein or a complete feed?

Personally i would not worry about it. Have you checked corn intake or Protein intake?

No corn intake(unless you count the leftover ones from my garden!)
and no it is not a concentrated mix just the complete grower, I think it is 15% protein.
The wheat I dont know the protein on but assumed it was about 15% average protein as well(it is good quality local stuff) which i thought would be good for growing birds out.
I used to let all my grower pullets out to free range every day and keep the roosters in but lately I have been letting the laying hens out instead.