First off this is my second year of grafting crabapples on rootstock. Had good success last year on dolgo rootstock. Wasn't able to get dolgo rootstock this year. Got some G890 from Cummins. Was kinda shocked when I got them as some had 2 roots and others up to 5 roots on them. I have no experience with these. Anyone familiar with these and did I waste my time grafting?