Frank...I have been trying to use a more gradual approach this time around(lost too many plants last time)...cuttings have been in root riot environment(70* temp/80% humidity)... so after uppotting to 1gals. I place them in plastic bins with flip top lids(5 pots per bin) and put them outside in my back yard under a 'pop-up' tent for shade...I spray the entire inside of the bin with a spray bottle, and then close the lids completely for the first day...then on day two, I spray the inside of the bin again, and leave one side of the lid open for several days, in order to very gradually get the little trees accustomed to outside conditions, while still maintaining some level of humidity...then after 5 to 7 days of this, I start taking them out of the bin and placeing them on a table (still under the shade of the tent)...then I gradually expose them to some "dappled" sunlight(eg. under a tree or under a trellis or some lattice work)...have not exposed any of them to direct sunlight yet(maybe in a couple of weeks)...so far I have done this with 55 trees with only 3 casualties...way better than my previous attempts.