thanks for verifying. Truly worthy of consideration if anyone is starting with just a few juju trees in the northeast--that hj and sc are more promising options.
of course there will always be the possibility that chico stems take much longer to get seasoned in areas with short-growing seasons. Many long-lived trees bide their time when grown in sub-optimal conditions, considerably extending their gestation periods..
budwood to rootstoc relations may have specific negative/positive feedback mechanisms, and chico/sherwood, etc seem to require its rootstoc achieve a critical mass of food reserves(relative to above-ground branches) before producing fruit.
from what we've observed, interstems also seem to influence precocity(or lack of).
while findings further confound the permutations, it cannot be denied that fruiting on the same year of being grafted are "true positives"