My apologies on taking so long to get back, life's been hectic lol! I only know of a breeder in Iowa I am not familiar with any breeders from around Cali, however sealed brindled are hard to come by not as hard as a blue obviously cause I had the only 2 reported in the u.s. in the last 10 years but the breeder here in Iowa has sealed brindles quite often as he his dams are mostly sealed resulting in sealed in their litters, I will do some research and see if I find anything if you haven't already found a breeder in your area of interest
