You are talking about Silkie I presume?
The Dutch I have don't seem to have inbreed problems. But they are not very docile (good escapers). I don't have bantam Orpies. I do have a bantam RIR and bantam Amrock too. These are much bigger than my Dutch and don't seem to have any inbreed problems either. In the past I had Naine de Tournaisis (Doornikse krielen of schipperskipjes), they were fun but did have health problems getting 4 yo. EYP and sudden death. The RIR is a beggar for food. The bantam Amrocks are very good free rangers (hunters) and were extreme good layers until this autumn (first moult).
Can you add the Netherlands in your profile? : Your account/Account details
Such info is often handy of interesting in converations.