western sandcherry from seed this spring

western sandcherry from seed this spring, collected from a neighbour's hansen bush cherries. they were excellent tasting, no idea yet if other sandcherries are as good. so this population will be kept separate from the ones I've been growing for apricot rootstocks, and will be used for breeding hybrids. so many hybrids, I want to cross all the prunus. what do you get when you hybridize fruit with different colors and sizes, I feel driven to find out. sandcherry is an excellent starting point because its progeny will likely fruit early, and root from softwood. eg all the cherry plums, and black nanking.