I only have experience with my 3 crosses. Temperaments were solid.That is so sweet! We are hooked on Silkies too & always had them.
One thing about cross-breeding Silkies is that the temperaments may not be sweet in the offspring. Just like Breda fowl ~ the B/B/S were sweet but the Cuckoo Breda that used Malines to crossbreed to get the cuckoo pattern changed both the size & the temperament of the Breda fowl.
All my Blue Breda were people/flock friendly sweeties but the Cuckoo Breda was much bigger/heavier & very aloof. In talking w/ other Breda owners/breeders they had the same issues ~ all B/B/S varieties were exceptional sweeties while other Breda crosses like Cuckoo or Mottled were skittish.
Phaedra ~ my first & favorite Blue Breda hen
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Twig for example. He was perfect with people, he never gave me any cause for concern even in his idiot stage. He did not actively seek out to be handled like his daddy Branch. He would let me handle him at night before he got on the roost and if caught never fought it, he melted and enjoyed some snuggle time. The issue with Twig is in trying to keep him I messed up the perfect rooster dynamic I had going. Branch and Bubba were hatchmates. They worked perfectly together. With those boys while I had more then enough hens for a 3 rooster flock, early on the boys let me know that 2 roosters was the magic number. Around 5 months old Bubba singled out Twig and was mean to him. It was a warning sign I ignored and should not have but I soo hoped to have Twiggy stay. After 3 months Twig finally stood up for himself to Bubba and Bubba backed off. I was soo happy and was not as observant as I should have been then in the golden period about the roo dynamics. I missed the signs. Twig got bolder and bigger then his dad. At 13 months Twig really came into his own decided he was no longer bottom of the totem pole. He turned on Branch. There were a few scuffles between them. I did not see them, mom did. She told me he and Branch were getting into it and I needed to choose between them. She voted Twig. I did not listen to her, she was still sort of in the anti-branch phase. My eyes were opened when Twig and Branch got into it right in front of me and I am thankful I was there. Twig started it and had Branch cornered in the back of the coop trying to kill him. I snapped, punted Twig off Branch and had him listed that afternoon. I caught him after and put him in isolation and was giving him until the weekend to be placed. Twig had a new home within 24 hours. Twig now has his own breeding flock for Barnyard mixes and is doing well. He is still great with people. In a way, the Twig and Branch scenario is very similar to the Mr. P and Bert issue that @Ponypoor is having. I would love for them to work it out but it appears it cannot and having been in the same spot I fully support whatever decision she has to make. I've been there.
The hens Goose and Spooky, they are just lovely. They are sweet and friendly like the Marans but with just a touch of the silkie spunk. I could have a whole flock of them and I would not mind.