>Can anyone recomend the right size chute and the length of shock cord?
Like the Graduator, the Forte suffers from fins that don't reach the motor
mount, so you need to give that lack of fin support some consideration when
picking a chute. It isn't a simple use x for this rocket, y for that kind
of thing. Conditions on the field should dictate what you use in the way of
a chute. I've flown my Forte on chute sizes from 8 to 24 inches. Shock
cords are another matter entirely. Eight to ten feet should do nicely.